| 1. |
- Josefsson, Ann, et al.
(författare)
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Continuation rates of oral hormonal contraceptives in a cohort of first-time users : a population-based registry study, Sweden 2005–2010
- 2013
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Ingår i: BMJ Open. - : BMJ Publishing Group Ltd. - 2044-6055. ; 3:10
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To investigate if continuation rates in first-time users of oral hormonal contraceptives differed between different formulations and to measure if the rates were related to the prescribing categories, that is, physicians and midwives.Design: A longitudinal national population-based registry study.Setting: The Swedish prescribed drug register.Participants: All women born between 1977 and 1994 defined as first-time users of hormonal contraceptives from 2007 to 2009 (n=226211).Main outcome measures: A tendency to switch the type of hormonal contraceptive within 6months use and repeated dispensation identical to the first were estimated as percentages and relative risks (RRs). Physicians' and midwives' prescription patterns concerning the women's continuation rates of oral hormonal contraceptive type.Results: In Sweden, there were 782375 women born between 1977 and 1994 at the time of the study. Of these, 226211 women were identified as first-time users of hormonal contraceptives. Ethinylestradiol+levonorgestrel, desogestrel-only and ethinylestradiol+drospirenone were the hormonal contraceptives most commonly dispensed to first-time users at rates of 43.3%, 24.4% and 11.1%, respectively. The overall rate of switching contraceptive types in the first 6months was 11.3%, which was highest for desogestrel-only (14.3%) and lowest for ethinylestradiol+drospirenone (6.6%). The switching rate for all three products was highest in the 16-year to 19-year age group. Having a repeated dispensation identical to the initial dispensation was highest for users of ethinylestradiol either combined with levonorgestrel or drospirenone, 81.4% and 81.2%, respectively, whereas this rate for the initial desogestrel-only users was 71.5%. The RR of switching of contraceptive type within the first 6months was 1.35 (95% CI 1.32 to 1.39) for desogestrel-only and 0.63 (0.59 to 0.66) for ethinylestradiol+drospirenone compared with ethinylestradiol+levonorgestrel as the reference category. There were no differences in the women's continuation rates depending on the prescriber categories.Conclusions: Desogestrel-only users conferred the highest switcher rate to another hormonal contraceptive within a 6-month period. Users of ethinylestradiol+levonorgestrel were more prone to switch to another product within 6months than women using ethinylestradiol+drospirenone. These findings may be of clinical importance when tailoring hormonal contraceptives on an individual basis.
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| 2. |
- Josefsson, Ann, et al.
(författare)
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Risk for congenital malformations in offspring of women who have undergone bariatric surgery. A national cohort
- 2013
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Ingår i: British Journal of Obstetrics and Gynecology. - : Wiley-Blackwell. - 1470-0328 .- 1471-0528. ; 120:12, s. 1477-1482
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Tidskriftsartikel (refereegranskat)abstract
- ObjectiveTo study the risk for congenital anomalies in the first child of women after bariatric surgery compared with all other women giving birth to their first child and divided by maternal body mass index (BMI) groups.DesignProspective, population-based register study.SettingSweden.SampleAll firstborn children to women born 1973–83 were studied to determine if they had a congenital anomaly and a mother who had undergone bariatric surgery before pregnancy.MethodsA total of 270 805 firstborns; of which 341 had mothers who had had bariatric surgery before delivery. We retrieved information on the women's marital or cohabitation status, smoking, BMI, diabetes and hypertension during pregnancy.Main outcome measuresCongenital malformations.ResultsOf the firstborn children to mothers who had had bariatric surgery before pregnancy, 4.1% (95% confidence interval [95% CI] 2.2–6.0) were malformed compared with 3.4% (95% CI 3.3–3.5) of those whose mothers had not undergone bariatric surgery. The risk for congenital malformation in firstborn children increased with increasing maternal BMI. The adjusted odds ratio (OR) for congenital malformation among children whose mothers' BMI ranged between 25 and 29 kg/m2 was 1.09 (95% CI 1.03–1.15), whose mothers' BMI ranged between 30 and 34 kg/m2 was 1.14 (1.05–1.24) and whose mothers' BMI was ≥35 kg/m2 was 1.30 (95% CI 1.16–1.45) compared with those whose mothers had a normal BMI. Bariatric surgery before pregnancy did not have any effect on the odds ratio for having congenital malformation (OR = 1.09, 95% CI 0.63–1.91).ConclusionsPreconception bariatric surgery does not seem to affect the risk for congenital malformations but a high to very high BMI does appear to increase the risk.
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| 3. |
- Lilliecreutz, Caroline, et al.
(författare)
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Mental disorders and risk factors among pregnant women with depressive symptoms in Sweden : A case-control study
- 2021
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : John Wiley & Sons. - 0001-6349 .- 1600-0412. ; 100:6, s. 1068-1074
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Tidskriftsartikel (refereegranskat)abstract
- Introduction Identification of pregnant women suffering from depression or other mental disorders is a challenge for antenatal caregivers. The purpose of this case-control study was to describe mental disorders and the risk factors for mental disorders in women with depressive symptoms assessed with the Edinburgh Postnatal Depression Scale during the first trimester and to compare them with pregnant women without depressive symptoms. Material and methods In total, 2271 women answered the Edinburgh Postnatal Depression Scale at the first antenatal visit with a midwife. An Edinburgh Postnatal Depression Scale score of 13 or higher was considered to be screen-positive and these women were further assessed. Screen-negative pregnant women, matched for age and parity, were chosen as controls. Results In total, 149 (6.6%) women were found to be screen-positive. The majority (126, 85%) had at least one mental disorder or risk factor for mental disorder, such as depression (36.0%), anxiety (14.8%), or severe fear of childbirth (20.8%). The screen-positive women were more often smokers (16.1% vs 1.3%), unemployed (19.9% vs 1.3%), or on sick leave (25.3% vs 14.1%) during pregnancy and more often used selective serotonin reuptake inhibitor during pregnancy (14.2% vs 2.7%) compared with the screen-negative women (P<.001). Among the screen-negative women (n = 150) only three (2%) presented with symptoms of depression during pregnancy. Conclusions The Edinburgh Postnatal Depression Scale seems to be a valuable screening tool to detect depressive symptoms as well as other mental disorders during early pregnancy.
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| 4. |
- Lindberg, Malou, et al.
(författare)
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Differences in prescription rates and odds ratios of antidepressant drugs in relation to individual hormonal contraceptives: A nationwide population-based study with age-specific analyses
- 2012
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Ingår i: European journal of contraception & reproductive health care. - : Informa Healthcare. - 1362-5187 .- 1473-0782. ; 17:2, s. 106-118
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Tidskriftsartikel (refereegranskat)abstract
- Objectives To examine, among young women, the association of individual hormonal contraceptives, within two broad groupings, with antidepressant therapy. less thanbrgreater than less thanbrgreater thanMethods In a nationwide register-based study, we examined the prescription rates of antidepressant drugs in relation to individual combined hormonal and progestin-only contraceptives among Swedish women aged 16-31 years (N = 917,993). Drug data were obtained from the Swedish Prescribed Drug Register for the period 1 July 2005-30 June 2008. Data on the total population of women aged 16-31 in 2008 were obtained from the Total Population Register of Statistics Sweden. The proportion of women using both hormonal contraception and antidepressants, and odds ratios (ORs) for antidepressant use for hormonal contraceptive users versus non-users, were calculated, the latter by logistic regression, for each formulation. less thanbrgreater than less thanbrgreater thanResults The highest antidepressant OR in all age groups, particularly in the 16-19 years age group, related to medroxyprogesterone-only, followed by etonogestrel-only, levonorgestrel-only and ethinylestradiol/norelgestromin formulations. Oral contraceptives containing ethinylestradiol combined with lynestrenol or drospirenone had considerably higher ORs than other pills. ORs significantly lower than 1 were observed when ethinylestradiol was combined with norethisterone, levonorgestrel or desogestrel. less thanbrgreater than less thanbrgreater thanConclusion The association between use of hormonal contraceptives and antidepressant drugs varies considerably within both the combined hormonal contraceptive and the progestin-only groups.
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| 5. |
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| 6. |
- Sarberg, Maria, et al.
(författare)
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Restless legs syndrome during and after pregnancy and its relation to snoring
- 2012
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : Informa Healthcare / Wiley-Blackwell. - 0001-6349 .- 1600-0412. ; 91:7, s. 850-855
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To study development of restless legs syndrome (RLS) during and after pregnancy, and whether RLS is related to snoring or other pregnancy-related symptoms. Design. Prospective study. Setting. Antenatal care clinics in the catchment area of Linkoping university hospital, Sweden. Population. Five hundred consecutively recruited pregnant women. Methods. Sleep disturbances, including symptoms of RLS and snoring, were assessed with questionnaires in each trimester. A complementary questionnaire was sent three years after delivery to women experiencing symptoms of RLS during pregnancy. Main outcome measures. Symptoms of RLS in relation to snoring in each trimester. Results. Symptoms of RLS were reported by 17.0% of the women in the first trimester, by 27.1% in the second trimester and by 29.6% in the third trimester. Snoring in the first trimester was correlated to increased prevalence of RLS in all three trimesters (p= 0.003, 0.017 and 0.044 in the first, second and third trimester, respectively). No correlation was found between RLS and anemia, parity or body mass index. Among the women who experienced RLS, 31% still had symptoms three years after delivery. Fifty-eight per cent of those whose symptoms had disappeared stated that this happened within one month after delivery. Conclusions. Symptoms of RLS progressed most between the first and second trimester. Women who snored in the first or second trimester of pregnancy had a higher prevalence of RLS in the third trimester, which indicates that snoring in early pregnancy might predict RLS later. Symptoms of RLS disappear quite soon after delivery, but about one-third of women with RLS during pregnancy may still have symptoms three years after childbirth.
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| 7. |
- Sarberg, Maria, et al.
(författare)
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Snoring during pregnancy and its relation to sleepiness and pregnancy outcome - a prospective study
- 2014
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Ingår i: BMC Pregnancy and Childbirth. - : BioMed Central. - 1471-2393 .- 1471-2393. ; 14:15
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Tidskriftsartikel (refereegranskat)abstract
- Background: The incidence of snoring and sleepiness is known to increase during pregnancy, and this might impact maternal health and obstetric outcome. However, the association between snoring and sleepiness during pregnancy is not fully understood. This study was aimed at investigating the development of snoring during pregnancy and prospectively assessing if there is an association between snoring and sleepiness or adverse pregnancy outcomes, such as preeclampsia, mode of delivery, and fetal complications. Methods: Consecutively recruited pregnant women (n = 500) received a questionnaire concerning snoring and sleep at the 1st and 3rd trimester of pregnancy. The women who had rated their frequency of snoring at both occasions (n = 340) were divided into subgroups according to the development of snoring they reported and included in the subsequent analyses. Additional medical data were collected from the medical records. Results: The frequency of snoring was 7.9% in the 1st trimester and increased to 21.2% in the 3rd trimester of pregnancy. The women who snored already in early pregnancy had significantly higher baseline BMI (p = 0.001) than the women who never snored, but snoring was not associated with the magnitude of weight gain during pregnancy. Snoring women were more likely to experience edema in late pregnancy than the non-snorers. Women who started to snore during pregnancy had higher Epworth Sleepiness Scores than the non snorers in both early and late pregnancy. No significant association between obstetric outcome and snoring was found. Conclusion: Snoring does increase during pregnancy, and this increase is associated with sleepiness, higher BMI at the start of pregnancy and higher prevalence of edema, but not with weight gain.
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| 8. |
- Wiréhn, Ann-Britt, et al.
(författare)
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Use of hormonal contraceptives in relation to antidepressant therapy: A nationwide population-based study
- 2010
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Ingår i: European journal of contraception & reproductive health care. - : Informa UK Limited. - 1362-5187 .- 1473-0782. ; 15:1, s. 41-47
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: The relation between the use of different hormonal contraceptives and antidepressant therapy was investigated. METHODS: In a nationwide cross-sectional study among all women in Sweden aged 16-31, drug expenditure data on hormonal contraceptives and antidepressants were obtained from the Swedish Prescribed Drug Register. Odds ratios (ORs) for antidepressant use were calculated by logistic regression for progestin-only users versus non-users as well as for combined hormonal contraceptive (CHC) users versus non-users. RESULTS: In the study population (N = 917,993), 58.9% were hormonal contraceptive users, and 8.5% were antidepressant users. The age-pattern for antidepressant ORs differed between the two types of users of contraceptives; progestin-only users had significant ORs above 1 in all age groups whereas among CHC users the OR was above 1 solely in those aged 16-19. The largest difference between types of users was seen in the age group 16-19 in which women resorting to a progestin-only contraceptive had a 67% (95% confidence interval: 57- 78%) higher antidepressant use than women treated with a CHC. CONCLUSION: Progestin-only contraceptive users resorted to antidepressants more than users of CHCs. This phenomenon is particularly pronounced among teenagers. Therefore, special attention should be given to young women's mental history when prescribing hormonal contraceptives and vice versa: the contraceptive history should be taken into account when prescribing antidepressants.
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| 9. |
- Wolgast, Emelie, et al.
(författare)
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Drug use in pregnant women-a pilot study of the coherence between reported use of drugs and presence of drugs in plasma
- 2018
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Ingår i: European Journal of Clinical Pharmacology. - : Springer. - 0031-6970 .- 1432-1041. ; 74:4, s. 535-539
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Tidskriftsartikel (refereegranskat)abstract
- In Sweden, information on drug use during pregnancy is obtained through an interview and recorded in a standardized medical record at every visit to the antenatal care clinic throughout the pregnancy. Antenatal, delivery, and neonatal records constitute the basis for the Swedish Medical Birth Register (MBR). The purpose of this exploratory study was to investigate the reliability of reported drug use by simultaneous screening for drug substances in the blood stream of the pregnant woman and thereby validate self-reported data in the MBR. Plasma samples from 200 women were obtained at gestational weeks 10-12 and 25 and screened for drugs by using ultra-high performance liquid chromatography with time of flight mass spectrometry (UHPLC-TOF-MS). The results from the analysis were then compared to medical records. At the first sampling occasion, the drugs found by screening had been reported by 86% of the women and on the second sampling, 85.5%. Missed reported information was clearly associated with drugs for occasional use. The most common drugs in plasma taken in early and mid-pregnancy were meclizine and paracetamol. Two types of continuously used drugs, selective serotonin reuptake inhibitors and propranolol, were used. All women using them reported it and the drug screening revealed a 100% coherence. This study shows good coherence between reported drug intake and the drugs found in plasma samples, which in turn positively validates the MBR.
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| 10. |
- Abu-Elyazeed, R R, et al.
(författare)
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Safety and immunogenicity of a glycoprotein D genital herpes vaccine in healthy girls 10-17 years of age : results from a randomised, controlled, double-blind trial
- 2013
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Ingår i: Vaccine. - : Elsevier BV. - 0264-410X .- 1873-2518. ; 31:51, s. 6136-6143
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: The investigational AS04-adjuvanted herpes simplex virus type 2 (HSV-2) glycoprotein D (gD2) subunit prophylactic vaccine ('HSV vaccine'; GlaxoSmithKline Vaccines) has been shown to be well tolerated in adults, but limited data exist for pre-teen and adolescent girls, a likely target population. The primary objective of this study was to compare the occurrence of serious adverse events (SAEs) over 12 months between HSV vaccine recipients and saline recipients (placebo control group) in pre-teen and adolescent girls. The immunogenicity of the HSV vaccine was also assessed.METHODS: Healthy girls aged 10-17 years, stratified by age (10-15 years; 16-17 years), were randomised 2:1:1 to receive the HSV vaccine, a hepatitis A vaccine (Havrix™; HAV control) or placebo (saline) according to a 0-, 1-, 6-month schedule. Participants and study personnel not involved in the preparation or administration of vaccines were blinded to treatment. Safety and immunogenicity analyses were performed overall and by age (10-15 years; 16-17 years) and HSV serostatus.RESULTS: No statistically significant difference in the percentage of subjects with SAEs was observed between the HSV and saline group, or between the HSV and pooled control (HAV and saline) groups. The HSV vaccine was well tolerated, although a higher incidence of solicited local symptoms was observed in the HSV group than in the control group. Neither age nor HSV serostatus at the time of study entry had an impact on the safety profile of this vaccine. The HSV vaccine was immunogenic regardless of pre-vaccination HSV serostatus. Higher anti-gD geometric mean concentrations were observed in HSV-1 seropositive participants than in HSV-1 seronegative participants.CONCLUSION: The HSV vaccine had an acceptable safety profile, and was well tolerated and immunogenic when administered to girls aged 10-17 years regardless of age or HSV pre-vaccination serostatus.
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| 11. |
- Ahldén, Ingegerd, et al.
(författare)
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Parenthood education in Swedish antenatal care : perceptions of midwives and obstetricians in charge.
- 2008
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Ingår i: The Journal of perinatal education : an ASPO/Lamaze publication. - 1058-1243. ; 17:2, s. 21-27
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to describe perceptions of parenthood education among midwives and obstetricians in charge of antenatal care in Sweden. Focus group interviews of 25 obstetricians and midwives were conducted. Data were analyzed with a phenomenographic approach. Five main categories emerged: aim of the parenthood education, content and expectations, implementation, support to group leaders, and strategies for the future. There is a strong belief in parenthood education, and the overall aim was considered to be support in the transition to parenthood. Contents should focus on awareness of the expected child, confidence in the biological processes, and the changes of roles. Pedagogies training, cost effectiveness, development, and the need to reach target groups were emphasized.
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| 12. |
- Ahldén, Ingegerd, et al.
(författare)
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Parents' Expectations About Participating in Antenatal Parenthood Education Classes
- 2012
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Ingår i: The Journal of Perinatal Education. - : Springer Publishing Company. - 1058-1243 .- 1548-8519. ; 21:1, s. 11-17
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Tidskriftsartikel (refereegranskat)abstract
- Our objective was to assess parents' expectations about participating in antenatal parenthood education classes and to determine whether their expectations might be related to gender, age, and educational level. Data from 1,117 women and 1,019 partners residing in three cities in Sweden were collected with a questionnaire in a cross-sectional study. Participants believed that antenatal education classes would help them to feel more secure as parents and to be better oriented toward childbirth. Men had more positive expectations about the childbirth than the women. The participants mostly wanted help in preparing for parenthood and in learning infant care skills, followed by help in preparing for childbirth. The participants' expectations were affected by gender, age, and educational level. The expectant parents appeared to want more focus on preparation for parenthood than on childbirth.
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| 13. |
- Areskoug Josefsson, Kristina, et al.
(författare)
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Evidence-based practice in a multiprofessional context
- 2012
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Ingår i: International Journal of Evidence-Based Healthcare. - : Ovid Technologies (Wolters Kluwer Health). - 1744-1595 .- 1744-1609. ; 10:2, s. 117-125
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Tidskriftsartikel (refereegranskat)abstract
- Background Healthcare today is a complex system with increasing needs of specific knowledge of evaluation of research and implementation into clinical practice. A critical issue is that we all apply evidence-based practice (EBP) with standardised methods and continuing and systematic improvements. EBP includes both scientific and critical assessed experience-based knowledge. For the individual, this means applying evidence-based knowledge to a specific situation, and for the organisation, it means catering for a systematic critical review and evaluation and compiling research into guidelines and programmes. In 2009, the County Council of Jönköping had approximately 335 000 inhabitants and the healthcare organisation had more than 10 000 employees. As the County Council actively promotes clinical improvement, it is interesting to explore how healthcare employees think about and act upon EBP. The aim of this survey was therefore to describe factors that facilitate or hinder the application of EBP in the clinical context.Method A quantitative study was performed with a questionnaire to healthcare staff employed in the County Council of Jönköping in 2009. The questionnaire consisted of questions concerning which factors are experienced to affect the development of evidence-based healthcare. There were 59 open and closed questions, divided into the following areas:• Sources of knowledge used in practice• Barriers to finding and evaluating research reports and guidelines• Barriers to changing practice on the basis of best evidence• Facilitating factors for changing practice on the basis of best evidence• Experience in finding, evaluating and using different sources of evidenceThe participants were selected using the county council's staff database and included medical, caring and rehabilitative staff within hospitals, primary care, dentistry and laboratory medicine. The inclusion criteria were permanent employment and clinical work. Invitations were sent to 5787 persons to participate in the study and 1445 persons answered the questionnaire.Results Knowledge used in daily clinical practice was mainly based on information about the patient, personal experience and local guidelines. Twenty per cent answered that they worked ‘in the way they always had’, and 11% responded that they used evidence from research as a basis for change. The participants experienced that EBP was not used enough in clinical healthcare and explained this with practical and structural barriers, which they thought should be better monitored by the organisation and directors.Conclusion Overall, the results indicate that the scientific evidence for healthcare is not used sufficiently as a base for decisions in daily practice as well as for changing practice. This is more prominent among assistant staff. As a consequence, this might affect the care of the patients in a negative way. Increased awareness of EBP and a stronger evidence-based approach are keys in the ongoing improvement work in the county. Local guidelines seem to be a way to implement knowledge. But, as the arena of activities is complex and the employees have diverse education levels, different strategies to facilitate and promote EBP are necessary.
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| 14. |
- Areskoug Josefsson, Kristina, et al.
(författare)
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The co-constructive processes in physiotherapy
- 2017
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Ingår i: Cogent Medicine. - : Cogent OA. - 2331-205X. ; 4, s. 1-8
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Tidskriftsartikel (refereegranskat)abstract
- To employ a person-centred approach, it is essential to work with the patient in deciding the important issues that the physiotherapy intervention should target, and to develop and adjust the individual treatment accordingly. Those co-constructive processes of physiotherapy consist of several parts, aiming to improve patient involvement and to optimize intervention outcomes. This paper aims to discuss and bring forward the role of the co-constructive processes in physiotherapy, by using perspectives from learning strategies and quality improvement strategies. The conclusion is that co-constructive learning processes are useful theories, which can be used in unison with quality improvement strategies for optimal co-construction between patients and physiotherapists and thus improve results of physiotherapy interventions.
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| 15. |
- Areskoug Josefsson, Kristina, 1973-, et al.
(författare)
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Using ICF and ICHI to promote sexual health
- 2021
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Ingår i: Cogent Medicine. - : Taylor & Francis. - 2331-205X. ; 8:1
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Tidskriftsartikel (refereegranskat)abstract
- Sexual health is an important but often neglected field in health and welfare practice. Using structured documentation in a systematic work process can promote sexual health care including rehabilitation. Objectives: To present an overview of the usefulness of International Classification of Functioning, Disability and Health (ICF) and International Classification of Health Interventions (ICHI) concerning sexual health in the care process, in the electronic health record (EHR) and for follow-up of results. Using experience from practice and research to identify relevant information in health care processes related to sexual health, which are coded by using ICF and ICHI. The ICF and ICHI can be useful tools to describe functioning, patient's goals, results, planned and performed interventions for investigation, treatment, prevention, and follow-up at individual level in care processes concerning sexual health with unified and unambiguous terms, concepts, and codes in the EHR. Using the ICF and ICHI can support improvement of individual sexual health care including rehabilitation, and also support follow-up and quality management at local to global level within the domain of sexual health.
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| 16. |
- Arp, Hans Peter H., et al.
(författare)
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Native Oxy-PAHs, N-PACs, and PAHs in historically contaminated soils from Sweden, Belgium, and France : their soil-porewater partitioning behavior, bioaccumulation in Enchytraeus crypticus, and bioavailability
- 2014
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Ingår i: Environmental Science and Technology. - : American Chemical Society (ACS). - 0013-936X .- 1520-5851. ; 48:19, s. 11187-11195
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Tidskriftsartikel (refereegranskat)abstract
- Soil quality standards are based on partitioning and toxicity data for laboratory-spiked reference soils, instead of real world, historically contaminated soils, which would be more representative. Here 21 diverse historically contaminated soils from Sweden, Belgium, and France were obtained, and the soil-porewater partitioning along with the bioaccumulation in exposed worms (Enchytraeus crypticus) of native polycyclic aromatic compounds (PACs) were quantified. The native PACs investigated were polycyclic aromatic hydrocarbons (PAHs) and, for the first time to be included in such a study, oxygenated-PAHs (oxy-PAHs) and nitrogen containing heterocyclic PACs (N-PACs). The passive sampler polyoxymethylene (POM) was used to measure the equilibrium freely dissolved porewater concentration, C-pw, of all PACs. The obtained organic carbon normalized partitioning coefficients, K-TOC, show that sorption of these native PACs is much stronger than observed in laboratory-spiked soils (typically by factors 10 to 100), which has been reported previously for PAHs but here for the first time for oxy-PAHs and N-PACs. A recently developed K-TOC model for historically contaminated sediments predicted the 597 unique, native K-TOC values in this study within a factor 30 for 100% of the data and a factor 3 for 58% of the data, without calibration. This model assumes that TOC in pyrogenic-impacted areas sorbs similarly to coal tar, rather than octanol as typically assumed. Black carbon (BC) inclusive partitioning models exhibited substantially poorer performance. Regarding bioaccumulation, C-pw combined with liposome-water partition coefficients corresponded better with measured worm lipid concentrations, C-lipid (within a factor 10 for 85% of all PACs and soils), than C-pw combined with octanol-water partition coefficients (within a factor 10 for 76% of all PACs and soils). E. crypticus mortality and reproducibility were also quantified. No enhanced mortality was observed in the 21 historically contaminated soils despite expectations from PAH spiked reference soils. Worm reproducibility weakly correlated to C-lipid of PACs, though the contributing influence of metal concentrations and soil texture could not be taken into account. The good agreement of POM-derived C-pw with independent soil and lipid partitioning models further supports that soil risk assessments would improve by accounting for bioavailability. Strategies for including bioavailability in soil risk assessment are presented.
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| 17. |
- Bladh, Marie
(författare)
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Birth Characteristics’ Impacton Future Reproduction and Morbidity Among Twins an dSingletons
- 2015
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Globally, in both developed and developing countries, the twinning rates have increased since the early 70’s. A large proportion of twins are born preterm and/or small-for-gestational-age (SGA) and/or with a low birth weight. Several studies have been performed on the long-term effect of these non-optimal birth characteristics on future reproductive performance and morbidity. Yet, most studies exclude twins or higher order pregnancies and thus the findings are based on singleton pregnancies only.The aim of the present thesis was therefore to investigate the impact of non-optimal birth characteristics in terms of preterm birth, small-for-gestational age, and low birth weight, on the reproductive pattern and morbidity among twins and singletons Furthermore, the present thesis attempted to establish whether twins and singletons were affected in the same manner.The studies included in this thesis are prospective population-based register studies, including all men and women, alive and living in Sweden at age 13, who were born between 1973 and 1983 (1,000,037 singletons and 16,561 twins) for the first three studies with follow-up till the end of 2006 and 2009. The last study included all men and women, alive and living in Sweden at age 13, who were born between 1973 and 1993 (2,051,479 singletons and 39,726 twins) with follow-up till the end of 2012.In general, twins were found less likely to reproduce between 13 and 33 years of age compared with singletons. Stratifying data by different birth characteristics, it was found that twins had a lower likelihood of reproducing on several different birth characteristics (appropriate-for-gestational-age, normal birth weight, low birth weight, term birth, preterm birth). However, twins born very preterm had an increased likelihood of reproducing compared with singletons born very preterm.Not taking birth characteristics into account, twinning was associated with a higher degree of hospitalization. However, accounting for the diverging birth characteristics this difference diminished and for some diagnoses the relationship was reversed such that twins were actually less likely to be hospitalized compared with singletons.In terms of the heritability of non-optimal birth characteristics singleton mothers born preterm were more predisposed to give birth to a child that was preterm while singleton mothers born SGA more often gave birth to a child either born preterm or SGA. Among twins this heritability was not as evident. The only difference observed was among twin mothers born SGA who were more likely to give birth to a child born SGA.In the extended cohort comprising those born between 1973 and 1993, male and female twins were found to be less likely to become parents compared with singletons. No difference was found among women in terms of having a second child, while male twins were more likely to have a second child compared with male singletons. It was also found that the likelihood of becoming a first-time parent and second-time parent was positively associated with the number of siblings.
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| 18. |
- Bladh, Marie, et al.
(författare)
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Hospitalization in Adolescence and Young Adulthood Among Twins and Singletons : A Swedish Cohort Study of Subjects Born Between 1973 and 1983
- 2013
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Ingår i: Twin Research and Human Genetics. - : Cambridge University Press (CUP). - 1832-4274 .- 1839-2628. ; 16:3, s. 707-715
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Tidskriftsartikel (refereegranskat)abstract
- Children born with non-optimal birth characteristics — that is, are small for gestational age and/or preterm — have an increased risk for several long-term effects such as neurological sequelae and chronic disease. The purpose of this study was to examine whether twins exhibited a different outcome, compared with singletons, in terms of hospitalization during adolescence and early adulthood, and to what extent differences remain when considering the divergence in birth characteristics between singletons and twins. Persons born between 1973 and 1983 in Sweden and surviving until age 13 were included and followed until the end of 2006. Data on birth characteristics, parental socio-demographic factors, and hospitalizations were collected from national registers. Adjusting for parental socio-demographic factors, twins had a higher risk of being hospitalized than singletons (odds ratio, OR = 1.17, 95% confidence interval, CI = 1.10–1.25) and more often due to ‘Congenital anomalies’ (OR = 1.18, 95% CI = 1.06–1.28), ‘Infections’ (OR = 1.14; 95% CI = 1.08–1.20), ‘External causes of illness’ (OR = 1.10, 95% CI = 1.06–1.15), and ‘Diseases of the nervous system’ (OR = 1.18, 95% CI = 1.10–1.26). Stratifying for birth characteristics, this difference diminishes, and for some diagnoses non-optimal twins seem to do slightly better than non-optimal singletons. Thus, twins with non-optimal birth characteristics had a lower risk of hospitalization than non-optimal singletons on, for example, ‘Congenital anomalies’ and ‘Diseases of the nervous system’ (OR = 0.86, 95% CI = 0.77–0.96; OR = 0.88, 95% CI = 0.81–0.97, respectively) and Total (any) hospitalization (OR = 0.87, 95% CI = 0.83–0.92). Among those with optimal birth characteristics, twins had an increased hospitalization due to ‘External causes of illness’ (OR = 1.07, 95% CI = 1.02–1.13) compared with optimal singletons. Twins have higher hospitalization rates than singletons. In stratifying for birth characteristics, this difference diminishes, and for some diagnoses, non-optimal twins seem to do less poorly than non-optimal singletons.
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| 19. |
- Bladh, Marie, et al.
(författare)
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Intergenerational cohort study of preterm and small-for-gestational-age birth in twins and singletons
- 2015
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Ingår i: Twin Research and Human Genetics. - : Cambridge University Press. - 1832-4274 .- 1839-2628. ; 18:5, s. 581-590
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Tidskriftsartikel (refereegranskat)abstract
- To date several studies have investigated the intergenerational effect of preterm and small-for-gestational-age births. However, most studies excluded both twin mothers and twin offspring from the analyses. Thus, the objective of this study was to investigate the intergenerational effect of preterm birth and small for gestational age (SGA) among twins and singletons.A prospective population based register study of mother-first-born offspring pairs recorded in the Swedish Medical Birth Register was performed. The study included 4073 twins and 264,794 singletons born in 1973-1983 and their firstborns born in 1986-2009. Preterm birth was defined as birth <37 weeks of gestation and SGA as < 2 standard deviations of the Swedish standard. Logistic regressions were performed to estimate the intergenerational effect of each birth characteristic. Adjustments were made for maternal grandmothers and mother’s socio-demographic factors in addition to maternal birth- characteristics.Among mothers born as singletons, being born preterm was associated with an increased risk for delivering a preterm child (adjusted OR 1.39, 95% CI 1.29-1.50) while being born SGA increased the likelihood of a SGA child (adjusted OR 3.04, 95% CI 2.80-3.30) as well as a preterm child (adjusted OR 1.30, 95% CI 1.20-1.40). In twin mothers, the corresponding ORs tended to be lower and the only statistically significant association was between a SGA mother and a SGA child (adjusted OR 2.15, 95% CI 1.40-3.31). A statistically significant interaction between twinning and mother’s size for gestational was identified in a multivariate linear regression analysis indicating that singleton mothers born SGA were associated with a lower birth weight compared to mothers not born SGA.Preterm birth and SGA appear to be transferred from one generation to the next, although not always reaching statistical significance. These effects seem to be less evident in mothers born as twins compared with those born as singletons.
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| 20. |
- Bladh, Marie, et al.
(författare)
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Reproductive pattern among twins and singletons in relation to number of siblings : a Swedish cohort study of individuals born between 1973 and 1993
- 2015
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Background Twinning has been shown to be associated with a reduced reproductive rate compared to singletons. This can partly be explained by the birth-characteristics pertaining to twinning as many twins are born preterm, with low birth weight or small for gestational age. However, the intergenerational reproductive rate may also be due to familial factors such as number of siblings.Methods This is a register-based study of all men and women born in Sweden between 1973 and 1993 who were living in Sweden at 13 years of age. Data on the study objects’ own births as well as their offspring, parental socio-demographic factors were collected from Swedish population based registers. Hazard ratios for the likelihood of becoming a parent were estimated using Cox’s proportion hazard models. All models were adjusted for socio-demographic and birth characteristics.Results Adjusting for number of siblings, socio-demographic factors and birth characteristics, twinning was associated with a decreased likelihood of becoming a first-time parent, compared with singletons both for females (HR (95% CI)=0.90 (0.88-0.93) and males (HR (95% CI)=0.96 (0.93-0.99). Having 3 or more siblings increased the chance of becoming a first-time parent among both male twins (HR (95% CI)=1.17 (1.08-1.27)) and singletons (HR (95% CI)=1.16 (1.15-1.18)) compared to having fewer than 3 siblings. This increased likelihood of becoming a parent was also present among female twins (HR (95% CI)=1.18 (1.10-1.26)) and singletons (HR (95% CI)=1.22 (1.21-1.24)).Conclusions Twins have a decreased likelihood of becoming a parent compared to singletons even when adjusting for number of siblings.
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| 21. |
- Bladh, Marie, et al.
(författare)
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Reproductive patterns among twins : a Swedish register study of men and women born 1973-1983
- 2013
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Ingår i: BMC Pregnancy and Childbirth. - : Springer Science and Business Media LLC. - 1471-2393 .- 1471-2393. ; 13
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundDuring the last decades there has been a steady increase of twin births. A combination of improved medical treatment of preterm and small-for-gestational age children has contributed to a higher number of surviving twins. Prematurity is known to affect reproduction in a negative way. Few studies have focused on the potential effect twinning may have on future reproduction. Thus, the aim of this study was to investigate the effect of being born a twin compared to being born a singleton have on future reproduction.MethodsIn a national population-based register study, all individuals born between 1973–1983 who were alive and living in Sweden at 13 years of age (n = 1 016 908) constituted the sample. Data on each study subject’s own birth as well as the birth of their first offspring, and parental socio-demographic factors were collected from Swedish population based registers. Hazard ratios and corresponding 95% CI was calculated using Cox proportional hazards model.ResultsTwins, both men and women, had a reduced likelihood of reproducing compared to singletons (women: HR = 0.89, 95% CI = 0.86-0.93; men: HR = 0.92, 95% CI = 0.87-0.97). This difference in birth rates can only partly be explained by diverging birth characteristics. Amongst men and women born very preterm, twins had an increased likelihood of reproducing compared to singletons (women: HR = 1.25, 95% CI = 1.02-1.62; men: HR = 1.34, 95% CI = 1.01-1.78).ConclusionsTwins have lower reproduction rates compared to singletons, which only to a certain degree can be explained by diverging birth characteristics.
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| 22. |
- Brechensbauer Brandin, Madeleine, et al.
(författare)
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Centralen : Studier i området kring Stockholms Centralstation
- 1989
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Rapport (populärvet., debatt m.m.)abstract
- Denna skrift handlar om Centralen i Stockholm och dess närmaste omgivningar, Centralplan, T-centralen, Vasagatan och Klarabergsgatan. Den är resultatet av Arkitekturskolans arbete läsåret 1983- 84 och innehåller förutom en rad projekt också historiska utblickar och samtidskritiska resonemang. En stor del av innehållet redovisades redan våren 1984 - det skedde genom en utställning på Arkitekturmuseet och en preliminär publikation. Materialet har sedan svällt ut med innehållsrika uppsatser om Centralen, om äldre och nyare insatser för att förena konst och arkitektur och om den föga kända, ännu obebyggda Blekholmen.
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| 23. |
- Brynhildsen, Jan, et al.
(författare)
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Leptin and adiponectin in cord blood from children of normal weight, overweight and obese mothers
- 2013
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Ingår i: Acta Paediatrica. - : Wiley-Blackwell. - 0803-5253 .- 1651-2227. ; 102:6, s. 620-624
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Tidskriftsartikel (refereegranskat)abstract
- Aim To study cord blood concentrations of adiponectin and leptin in children born by normal weight, overweight and obese mothers and to study these parameters in relation to a weight gain intervention programme for obese mothers. Methods Ten millilitre cord blood was collected and analysed for leptin and adiponectin concentrations in children with gestational age andgt;37weeks born by 60 normal weight, 45 overweight and 145 obese mothers. 82 obese mothers took part in a weight gain intervention programme. Results Concentrations of leptin and adiponectin were higher in cord blood from children of overweight and obese mothers compared with children of normal weight mothers (leptin: Md 13.2, 30, 3 and 90.2ng/mL respectively, pandlt;0.001; adiponectin 35.9, 205.4, 213.8ng/L pandlt;0.001). No differences were found between overweight and obese mothers. The weight gain intervention programme for obese pregnant women had significant effects on the weight gain during pregnancy but had no effects on cord blood serum concentrations of leptin and adiponectin. Conclusion Cord blood leptin and adiponectin concentrations were higher in children born by overweight or obese women compared with children of normal weight mothers. A weight gain intervention programme for obese pregnant women did not affect these results. Intrauterine exposition to high concentrations of leptin and adiponectin may play a role in weight development later in life.
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| 24. |
- Brynhildsen, Jan, et al.
(författare)
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The importance of maternal BMI on infants birth weight in four BMI groups for the period 1978-2001
- 2009
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Ingår i: ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA. - : Wiley. - 0001-6349 .- 1600-0412. ; 88:4, s. 391-396
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To study whether increased maternal weight and other factors of importance is associated with higher birth weights of the children over a period of almost 25 years. Design. Retrospective cohort study. Setting. Delivery wards in southeast Sweden. Sample. A total of 4,330 delivered women and their children from the years 1978, 1986, 1992, 1997, and 2001. Methods. Analysis of covariance was used to evaluate the importance of the mothers body mass index (BMI) on the childrens birth weights during the study years and smoking, parity, employment, gestational age, and the age of the mothers were adjusted for. Main outcome measures. Weight of the offspring in relation to maternal BMI and possible confounders such as smoking, parity, employment, gestational age, and the age of the mother. Results. Between 1978 and 1992, there was an increase in birth weight in each of the four BMI categories (i.e. BMI20, 20-24.9, 25-29.9 and 30, respectively) even after adjustments were made for relevant background characteristics (p0.001). However, between 1992 and 2001, the birth weight for children whose mothers had a BMI of less than 20 or between 20 and 24.9 decreased (p0.001). For almost every study year, the mothers BMI was of significant influence on the childrens birth weights. However, the proportion of variance explained by the models (i.e. the adjusted R2) was not substantially altered when the mothers BMI was excluded from the models. Conclusion. Maternal BMI is of significance to explain trends in infants birth weight over time, but not of sole importance.
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| 25. |
- Carlhäll, Sara, et al.
(författare)
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Maternal obesity (Class I-III), gestational weight gain and maternal leptin levels during and after pregnancy : a prospective cohort study
- 2016
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Ingår i: BMC Obesity. - : BioMed Central. - 2052-9538. ; 3:28
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundMaternal obesity is accompanied by maternal and fetal complications during and after pregnancy. The risks seem to increase with degree of obesity. Leptin has been suggested to play a role in the development of obesity related complications. Whether maternal leptin levels differ between obese and morbidly obese women, during and after pregnancy, have to our knowledge not been previously described. Neither has the association between maternal leptin levels and gestational weight gain in obese women. The aim was to evaluate if maternal plasma leptin levels were associated with different degrees of maternal obesity and gestational weight gain.MethodsProspective cohort study including women categorized as obesity class I-III (n = 343) and divided into three gestational weight gain groups (n = 304). Maternal plasma leptin was measured at gestational week 15, 29 and 10 weeks postpartum. Maternal Body Mass Index (BMI) was calculated from early pregnancy weight. Gestational weight gain was calculated using maternal weight in delivery week minus early pregnancy weight. The mean value and confidence interval of plasma-leptin were analysed with a two-way ANOVA model. Interaction effect between BMI and gestational weight gain group was tested with a two-way ANOVA model.ResultsThe mean maternal leptin concentrations were significantly higher in women with obesity class III compared to women in obesity class I, at all times when plasma leptin were measured. The mean leptin concentrations were also significantly higher in women with obesity class II compared to women in obesity class I, except in gestational week 29. There was no difference in mean levels of plasma leptin between the gestational weight gain groups. No significant interaction between BMI and gestational weight gain group was found.ConclusionsPlasma leptin levels during and after pregnancy were associated with obesity class but not with degree of gestational weight gain. These results are in concordance with epidemiological findings where the risk of obstetric complications increases with increased maternal obesity class. The effect on obstetric outcome by degree of gestational weight gain is less pronounced than the adverse effects associated with maternal obesity.
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