| 1. |
- Bazargani, Farnaz, et al.
(författare)
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Mode of conception in relation to nausea and vomiting of pregnancy : a nested matched cohort study in Sweden
- 2021
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Ingår i: Scientific Reports. - : Springer Nature. - 2045-2322. ; 11:1
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Tidskriftsartikel (refereegranskat)abstract
- Nausea and vomiting of pregnancy (NVP) is a common condition reported however inconclusively among pregnancies after assisted conception. The study objective was thus to explore whether NVP is associated to mode of conception or other in vitro fertilization (IVF)-related variables. This nested matched cohort study, originating from the BASIC-project, was conducted at the Uppsala University Hospital in Sweden between 2010 and 2016. IVF pregnancies (n=210) and age and parity-matched women with spontaneous pregnancies (n=420) comprised the study sample. The study outcome was self-reported NVP at gestational week 17. IVF treatment and pregnancy data were obtained after scrutinization of the medical records. NVP with or without medications was not associated with mode of conception (chi-square test, p=0.889), even after adjusting for potential confounders. In a subgroup analysis among IVF pregnancies, NVP without medication was more frequently seen in the group who received cleavage stage embryos vs blastocysts (chi-square test, p=0.019), exhibiting a marginally significant but strongly increased effect even after adjustment [crude RRR 3.82 (95% CI 1.23-11.92) and adjusted RRR 3.42 (95% CI 0.96-12.11)]. No difference in the rate of NVP with or without medication between women that underwent fresh and frozen/thawed embryo transfers as well as IVF or ICSI was observed. Conception through IVF is not associated with NVP. Transfer of a blastocyst may decrease the risk of developing NVP and further, large-scale prospective studies are required to validate this finding.
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| 2. |
- Armuand, Gabriela, et al.
(författare)
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Attitudes among paediatric healthcare professionals in Sweden towards sperm donation to single women : a survey study
- 2020
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Ingår i: Fertility research and practice. - : BioMed Central. - 2054-7099. ; 6
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Tidskriftsartikel (refereegranskat)abstract
- Background: The number of families conceived through sperm donation to single women is increasing. However, there is limited knowledge about health care professionals' attitudes towards solo-mothers by choice, and there is some indication that professionals' personal opinions influence their care of individuals who use alternate ways to build a family. The primary aim of the study was to investigate attitudes towards, and experiences of, families following sperm donation to single women among healthcare professionals working in primary child healthcare.Methods: Between April and November 2016 a total of 712 physicians, registered nurses and psychologists working within primary healthcare in Sweden were invited to participate in a cross-sectional online survey study. The study-specific questionnaire contained the following four domains: Attitudes towards legalization and financing, Attitudes towards the family and the child's health, Clinical experience and Knowledge about sperm donation to single women.Results: The majority of the participants were positive or neutral towards sperm donation being allowed to single women in Sweden. However, one third believed that children risk worse mental health and social stigma. Half of healthcare professionals had own clinical experience of caring for solo-mothers by choice and their children, and of these one third perceived that these families had more need of support than other parents. One out of four indicated that they did not have sufficient knowledge to be able to provide adequate care to these families.Conclusions: The present results indicate that while there was a relatively large support for sperm donation being allowed to single women in Sweden among health care professionals, many expressed concerns about the child's health, as well as low confidence in their knowledge about the specific needs in this patient group. There is a need for educational interventions targeted to healthcare professionals in primary child healthcare in order to provide adequate care to solo-mothers by choice and their children.
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| 3. |
- Bazargani, Farnaz, et al.
(författare)
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Conception by means of in vitro fertilization (IVF) is not associated with nausea and vomiting of pregnancy
- 2020
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Konferensbidrag (refereegranskat)abstract
- Study question:Is there any association between mode of conception or IVF-related variables and nausea and vomiting of pregnancy (NVP)?Summary answer:Conception by means of IVF is not associated with NVP but the stage of the transferred embryo may affect NVP development.What is known already:The exact cause of NVP is unknown but risk factors including increased hormonal levels, maternal distress and anxiety disorders, also described in IVF populations, have been reported. There are only a few studies exploring NVP in IVF samples. A population-based study examining the characteristics of women who suffered from a severe form of NVP, it was reported that women with severe NVP had more often conceived through assisted reproduction techniques. So far, the relationship between NVP and IVF or different treatment related parameters in the IVF population in relation to NVP remains unclear.Study design, size, duration:The study is a longitudinal, matched - cohort, pilot study including 630 pregnant women with singletons without malformations, recruited during the pregnancy ultrasound in gestational week 17 (GW 17). The study was conducted between 2010-2016 at the University Hospital of Uppsala, Sweden.Participants/materials, setting, methods:The study population comprised 210 women with IVF conceived pregnancies and 420 age and parity matched women with spontaneous pregnancies. All participants self-reported sociodemographic and pregnancy-related information. IVF treatment data were obtained after scrutinization of the medical records. The outcome, NVP at GW 17, was divided into: 1) absence of NVP, 2) NVP not requiring medications and 3) NVP requiring medications. NVP was then studied in relation to exposure and to different IVF treatment-associated variables.Main results and the role of chance:The mean age of the participants was 33.7 years with 2/3 of the participants being primipara. IVF pregnant women reported more frequently comorbidities (such as hypertension, diabetes, migraine etc) (59.1% vs 49.9%), but less frequently alcohol consumption (38.4% vs 48.7%) compared to women with spontaneous pregnancies. Clinical and sociodemographic characteristics such as education, employment, smoking habits, maternal BMI, depression history, delivery fear and newborn gender, were otherwise similar between the groups. NVP with or without medications was not associated with mode of conception (p=0.889); 11.4% of women who conceived through IVF suffered from NVP requiring medications and 62.4% from unmedicated NVP vs 10.8% and 64.3% respectively of women with spontaneous pregnancies. Absence of NVP was reported by 26.2% of IVF and 24.9% of spontaneously pregnant women. However, in a subgroup analysis in the group of women who conceived through IVF, NVP was more frequently seen in the group who received cleavage stage embryos vs blastocysts (p=0.019). We could not however find any significant difference in the rate of NVP with or without medications between fresh (69.4%) or frozen/thawed embryo transfers (78.5%), nor between IVF(72.3%) and intracytoplasmic sperm injection(ICSI)(77.4%) treatments. Lastly, there was no significant difference between infertility diagnosis and NVP.Limitations, reasons for caution:The study had limited power to detect differences in NVP in relation to mode of conception. In addition, there was a missing rate of 30.5% in the reported embryo stage variable. Finally, the rate of blastocyst-transfers during that period was lower than otherwise expected with current statistics.Wider implications of the findings:It is still unclear whether IVF has an impact on the risk of NVP. However, transfer of a blastocyst may decrease the risk of developing NVP.
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| 4. |
- Elenis, Evangelia, 1983-, et al.
(författare)
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Accelerated fetal growth in early pregnancy and risk of preterm birth : a prospective cohort study
- 2020
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Ingår i: BMC Pregnancy and Childbirth. - : Springer Science and Business Media LLC. - 1471-2393 .- 1471-2393. ; 20:1
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundPreterm birth (occurring before 37 completed weeks of gestation) affects 15 million infants annually, 7.5% of which die due to related complications. The detection and early diagnosis are therefore paramount in order to prevent the development of prematurity and its consequences. So far, focus has been laid on the association between reduced intrauterine fetal growth during late gestation and prematurity. The aim of the current study was to investigate the association between accelerated fetal growth in early pregnancy and the risk of preterm birth.MethodsThis prospective cohort study included 69,617 singleton pregnancies without congenital malformations and with available biometric measurements during the first and second trimester. Estimation of fetal growth was based on measurements of biparietal diameter (BPD) at first and second trimester scan. We investigated the association between accelerated fetal growth and preterm birth prior to 37 weeks of gestation. The outcome was further stratified into very preterm birth (before 32 weeks of gestation) or moderate preterm birth (between 32 and 37 weeks of gestation) and medically induced or spontaneous preterm birth and was further explored.ResultsThe odds of prematurity were increased among fetuses with accelerated BPD growth (> 90th centile) estimated between first and second ultrasound scan, even after adjustment for possible confounders (aOR 1.36; 95% CI 1.20–1.54). The findings remained significant what regards moderate preterm births but not very preterm births. Regarding medically induced preterm birth, the odds were found to be elevated in the group of fetuses with accelerated growth in early pregnancy (aOR 1.34; 95% CI 1.11–1.63). On the contrary, fetuses with delayed fetal growth exhibited lower odds for both overall and spontaneous preterm birth.ConclusionsFetuses with accelerated BPD growth in early pregnancy, detected by ultrasound examination during the second trimester, exhibited increased odds of being born preterm. The findings of the current study suggest that fetal growth in early pregnancy should be taken into account when assessing the risk for preterm birth.
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| 5. |
- Elenis, Evangelia, 1983-, et al.
(författare)
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Access to infertility evaluation and treatment in two public fertility clinics and the reasons for withholding it : A prospective survey cohort study of healthcare professionals
- 2020
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Ingår i: BMJ Open. - : BMJ. - 2044-6055. ; 10:12
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Tidskriftsartikel (refereegranskat)abstract
- Objectives Study the proportion of patients affected by involuntary childlessness who are denied fertility treatment and the reasons behind this in a publicly funded healthcare system. Design Survey study using prospectively collected information by healthcare professionals. Setting Two university-affiliated fertility clinics in Sweden. Participants Single women and couples in heterosexual and homosexual relationships seeking fertility evaluation and treatment between November 2017 and April 2018 (943 individual cases). Primary and secondary outcome measures Number and proportion of individuals who were either denied, delayed or granted fertility treatment directly. Furthermore, the reasons behind delaying or completely withholding treatment. Results The majority of those seeking evaluation were heterosexual couples (75%), while 14% were single women and 7.5% were same-sex couples. The great majority of those undergoing evaluation were granted treatment either directly (85%) or after in-depth evaluation (7.5%), while 7.5% were denied treatment. Among those who were denied treatment, there were a greater proportion of single women and couples seeking treatment with donated gametes. Among heterosexual couples, gamete origin was not associated with treatment refusal. Although age did not differ between those granted and denied treatment, a higher body mass index (in both recipient and partner, when applicable) was observed among those being refused treatment. Fertility specialists in Sweden focused their assessment on parental factors that may indirectly entail a risk of harm to the future child, such as medical and psychiatric conditions of the individuals involved, their financial constraints and other social reasons, substance abuse and female obesity. Conclusion Being single or receiving treatment with donated gametes can both be reasons for withholding fertility treatment. Although difficult to operationalise, parenting assessment in Sweden is employed interchangeably in treatments with donated gametes (legally mandated assessment) and even autologous gametes (non-legally mandated assessment) - making evident a need for clear official policy guidelines regulating these assessments and the provision of treatment.
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| 6. |
- Elenis, Evangelia, 1983-, et al.
(författare)
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Early initiation of anti-androgen treatment is associated with increased probability of spontaneous conception leading to childbirth in women with polycystic ovary syndrome : a population-based multiregistry cohort study in Sweden
- 2021
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Ingår i: Human Reproduction. - : Oxford University Press. - 0268-1161 .- 1460-2350. ; 36:5, s. 1427-1435
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Tidskriftsartikel (refereegranskat)abstract
- STUDY QUESTION: Is anti-androgen treatment during adolescence associated with an improved probability of spontaneous conception leading to childbirth in women with polycystic ovary syndrome (PCOS)?SUMMARY ANSWER: Early initiation of anti-androgen treatment is associated with an increased probability of childbirth after spontaneous conception among women with PCOS.WHAT IS KNOWN ALREADY: PCOS is the most common endocrinopathy affecting women of reproductive age. Hyperandrogenism and menstrual irregularities associated with PCOS typically emerge in early adolescence. Previous work indicates that diagnosis at an earlier age (<25 years) is associated with higher fecundity compared to a later diagnosis.STUDY DESIGN, SIZE, DURATION: This population-based study utilized five linked Swedish national registries. A total of 15 106 women with PCOS and 73 786 control women were included. Women were followed from when they turned 18 years of age until the end of 2015, leading to a maximum follow-up of 10 years. First childbirth after spontaneous conception was the main outcome, as identified from the Medical Birth Registry.PARTICIPANTS/MATERIALS, SETTING, METHODS: Participants included all women born between 1987 and 1996 with a diagnosis of PCOS in the Swedish Patient Registry and randomly selected non-PCOS controls (ratio 1:5). Information on anti-androgenic treatment was retrieved from the Swedish Prescribed Drug Registry with the use of Anatomic Therapeutic Chemical (ATC) codes. Women with PCOS who were not treated with any anti-androgenic medication were regarded as normo-androgenic, while those treated were regarded as hyperandrogenic. Women were further classified as being mildly hyperandrogenic if they received anti-androgenic combined oral contraceptive (aaCOC) monotherapy, or severely hyperandrogenic if they received other anti-androgens with or without aaCOCs. Early and late users comprised women with PCOS who started anti-androgenic treatment initiated either during adolescence (<= 18 years of age) or after adolescence (>18 years), respectively. The probability of first childbirth after spontaneous conception was analyzed with the use of Kaplan-Meier hazard curve. The fecundity rate (FR) and 95% confidence interval for the time to first childbirth that were conceived spontaneously were calculated using Cox proportional hazards regression models, with adjustment for obesity, birth year, country of birth and education level.MAIN RESULTS AND THE ROLE OF CHANCE: The probability of childbirth after spontaneous conception in the PCOS group compared to non-PCOS controls was 11% lower among normo-androgenic (adjusted FR 0.68 (95% CI 0.64-0.72)), and 40% lower among hyperandrogenic women with PCOS (adjusted FR 0.53 (95% CI 0.50-0.57)). FR was lowest among severely hyperandrogenic women with PCOS compared to normo-androgenic women with PCOS (adjusted FR 0.60 (95% CI 0.52-0.69)), followed by mildly hyperandrogenic women with PCOS (adjusted FR 0.84 (95% CI 0.77-0.93)). Compared to early anti-androgenic treatment users, late users exhibited a lower probability of childbirth after spontaneous conception (adjusted FR 0.79 (95% CI 0.68-0.92)).LIMITATIONS, REASONS FOR CAUTION: We lacked direct information on the intention to conceive and the androgenic biochemical status of the PCOS participants, applying instead the use of anti-androgenic medications as a proxy of hyperandrogenism. The duration of anti-androgenic treatment utilized is not known, only the age at prescription. Results are not adjusted for BMI, but for obesity diagnosis. The period of follow-up ( 10 years) was restricted by the need to include only those women for whom data were available on the dispensing of medications during adolescence (born between 1987 and 1996). Women with PCOS who did not seek medical assistance might have been incorrectly classified as not having the disease. Such misclassification would lead to an underestimation of the true association between PCOS and outcomes.WIDER IMPLICATIONS OF THE FINDINGS: Early initiation of anti-androgen treatment is associated with better spontaneous fertility rate. These findings support the need for future interventional randomized prospective studies investigating critical windows of anti-androgen treatment.
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| 7. |
- Elenis, Evangelia, 1983-, et al.
(författare)
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Estrogen-modulating treatment among mid-life women and COVID-19 morbidity and mortality : a multiregister nationwide matched cohort study in Sweden
- 2024
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Ingår i: BMC Medicine. - : BioMed Central (BMC). - 1741-7015. ; 22:1
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundIt has been repeatedly shown that men infected by SARS-CoV-2 face a twofold higher likelihood of dying, being hospitalized or admitted to the intensive care unit compared to women, despite taking into account relevant confounders. It has been hypothesized that these discrepancies are related to sex steroid hormone differences with estrogens being negatively correlated with disease severity. The objective of this study was therefore to evaluate COVID-19-related mortality and morbidity among peri- and postmenopausal women in relation to estrogen-containing menopause hormonal treatments (MHT).MethodsThis is a national register-based matched cohort study performed in Sweden between January 1 to December 31, 2020. Study participants comprised women over the age of 53 years residing in Sweden. Exposure was defined as prescriptions of local estrogens, systemic estrogens with and without progestogens, progestogens alone, or tibolone. MHT users were then compared with a matched cohort of non-users. The primary outcome consisted of COVID-19 mortality, whereas the secondary outcomes included inpatient hospitalizations/outpatient visits and confirmed SARS-CoV-2 infection. Multivariable adjusted Cox regression-derived hazard ratios (HRs) were calculated.ResultsUse of systemic estrogens alone is associated with increased COVID-19 mortality among older women (aHR 4.73, 1.22 to 18.32), but the association is no longer significant when discontinuation of estrogen use is accounted for. An increased risk for COVID-19 infection is further observed for women using combined systemic estrogens and progestogens (aHR 1.06, 1.00 to 1.13) or tibolone (aHR 1.21, 1.01 to 1.45). Use of local estrogens is associated with an increased risk for COVID-19-related death (aHR 2.02,1.45 to 2.81) as well as for all secondary outcomes.ConclusionsSystemic or local use of estrogens does not decrease COVID-19 morbidity and mortality to premenopausal background levels. Excess risk for COVID-19 morbidity and mortality was noted among older women and those discontinuing systemic estrogens. Higher risk for death was also noted among women using local estrogens, for which non-causal mechanisms such as confounding by comorbidity or frailty seem to be the most plausible underlying explanations.
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| 8. |
- Elenis, Evangelia, 1983-, et al.
(författare)
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Neonatal outcomes in pregnancies resulting from oocyte donation : a cohort study in Sweden
- 2016
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Ingår i: BMC Pediatrics. - : Springer Science and Business Media LLC. - 1471-2431 .- 1471-2431. ; 16
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Tidskriftsartikel (refereegranskat)abstract
- Background: Pregnancies resulting through oocyte doantion have been associated with increased risk for adverse outcomes for the mother, such as gestational hypertensive disorders. However, little is known about possible neonatal complications of such pregnancies. The purpose of this study was to evaluate the neonatal health outcomes among singleton pregnancies in a population of relatively young and healthy oocyte recipients in Sweden, taking into account the medical indication leading to treatment.Methods: This cohort study involved 76 women conceiving with donated oocytes, 149 age-matched nulliparous women conceiving spontaneously and 63 women conceiving after non-donor IVF. Participants were recruited during 2005-2008 and followed up until delivery. Data on neonatal outcomes were retrieved from the National Birth Medical Register and the medical records of oocyte recipients from seven Swedish University Hospitals with IVF clinics. Logistic regression analyses were performed to examine the association of mode of conception and neonatal outcomes, adjusted for maternal age and BMI, gestational age and delivery by cesarean section.Results: Infants conceived through oocyte donation had higher odds for premature delivery( OR 2.36, 95%CI(1.02-5.45)), for being small for gestational age (OR 4.23, 95%CI(1.03-17.42)), and having Apgar score below 7 at 5 min(OR 10.57, 95%CI(1.21-92.20)) compared to spontaneously conceived infants. Similar trends were observed when comparing infants conceived through oocyte donatiion to those conceived by traditional IVF. Furthermore, donor oocyte infants had a lower mean birthweight and length compared to autologous oocyte neonates (p=0.0013); however, no differences were noted among infants born at term. Neonatal outcomes were more favorable among women with diminished ovarian reserve compared to those with other indications for oocyte donation.Conclusions: Infants conceived after oocyte donation in Sweden have higher odds of being born prematurely and having lower mean birthweight in comparison to non-donor infants. It seems that these unfavorable neonatal outcomes are present despite the age, weight and health restrictions applied to recipients before oocyte donation treatment in Sweden.
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| 9. |
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| 10. |
- Persson, Sofia, et al.
(författare)
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Fecundity among women with polycystic ovary syndrome (PCOS)-a population-based study
- 2019
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Ingår i: Human Reproduction. - : Oxford University Press. - 0268-1161 .- 1460-2350. ; 34:10, s. 2052-2060
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Tidskriftsartikel (refereegranskat)abstract
- STUDY QUESTION: Does the long-term fecundity of women with polycystic ovary syndrome (PCOS) differ from those without PCOS?SUMMARY ANSWER: Cumulative probability of childbirth is similar between women with and without PCOS.WHAT IS KNOWN ALREADY: PCOS is the main cause of anovulatory infertility in women after menarche. Previous studies indirectly suggest that fecundity in women with PCOS over the longer term may not be lower than in women without PCOS.STUDY DESIGN, SIZE, DURATION: This is a population-based study using four linked Swedish national registries. A total of 45 395 women with PCOS and 217 049 non-PCOS women were included. Follow-up began at the age of 18 years and continued for a maximum of 26 years, from 1989 to the end of 2015. Childbirth was the main outcome, as identified from the Medical Birth Register.PARTICIPANTS/MATERIALS, SETTING, METHODS: All women born between 1971 and 1997 who were identified with a PCOS diagnosis in the Swedish Patient Registry between 1 January 2001 and 31 December 2016 were included in the study population. Five controls per women with PCOS were randomly drawn from the Total Population Registry. The control women were born in the same year and living in the same municipality as the patient. The fecundity ratio (FR) was calculated by clustered Cox regression using a robust variance, adjusted for maternal birth period, country of birth and level of education.MAIN RESULTS AND THE ROLE OF CHANCE: The cumulative probability of childbirth was 80.2% (95% CI, 79.5–80.9%) in women with PCOS and 78.2% (95% CI, 77.9–78.5%) in those without PCOS. Adjusted FR was 0.81 (95% CI, 0.80–0.82) for first childbirth and 0.58 (95% CI, 0.57–0.60) for first childbirth following a spontaneous pregnancy. The FR for second childbirth was 0.79 (95% CI, 0.77–0.80). Women with PCOS had more than one child less frequently than the comparison group. Within the PCOS group, early age at diagnosis, later birth year, Nordic country of origin and low educational level positively influenced the FR.LIMITATIONS, REASONS FOR CAUTION: Results are not adjusted for BMI, and time from intention to conceive to first childbirth could not be captured. Data on pregnancies, miscarriages or abortions and fertility treatment are unknown for women who did not give birth during the study period. Women with PCOS who did not seek medical assistance might have been incorrectly classified as not having the disease. Such misclassification would lead to an underestimation of the true association between PCOS and outcomes.WIDER IMPLICATIONS OF THE FINDINGS: While cumulative probability of childbirth is similar between groups, women with PCOS need longer time to achieve their first childbirth. Women with PCOS have a lower FR and give birth to fewer children per woman than women without PCOS. Early diagnosis of and information about PCOS may improve affected women’s reproductive potential.STUDY FUNDING/COMPETING INTEREST(S): This study was funded by the Swedish Society of Medicine. Inger Sundström Poromaa has, over the past 3 years, received compensation as a consultant and lecturer for Bayer Schering Pharma, MSD, Gedeon Richter, Peptonics and Lundbeck A/S. The other authors declare no competing interests.
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