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Sökning: hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) > (2020) > Sundquist Jan

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1.
  • Wändell, Per, et al. (författare)
  • Levothyroxine treatment and incident dementia in adults with atrial fibrillation
  • 2020
  • Ingår i: Aging clinical and experimental research. - : Springer Science and Business Media LLC. - 1594-0667 .- 1720-8319. ; 32:3, s. 433-439
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Levothyroxine treatment is common among older adults as is atrial fibrillation (AF), yet less is known about its potential effects on the development of dementia. Methods: The study population included all adults with diagnosed AF (n = 156,104) aged ≥ 45 years in Sweden without an earlier recorded diagnosis of dementia. Individuals with a dispensed prescription of levothyroxine on two or more occasions between July 1 2005 and December 31 2006 in Sweden were considered exposed (n = 12,978; 8.3%), and were compared to all other patients with AF without this treatment. Cox regression with hazard ratios (HRs) and 95% confidence interval (95% CI), with outcome defined as dementia of all causes between January 1, 2007 and December 31, 2015, was used in the analysis. Adjustments were made for socio-demographic factors (age, immigration status, marital status, educational level, neighborhood socioeconomic status), co-morbidity (cardiovascular disease, obesity, diabetes, COPD, depression, anxiety and alcohol related diagnoses), and cardiovascular medications. Results: During follow-up, a total of 9054 patients with AF were diagnosed with dementia (5.8%). We found no significant association of levothyroxine treatment and incident dementia, fully adjusted HR 1.03 (95% CI 0.96–1.11), neither among men and women, nor in different age-groups or subgroups of dementia. Conclusion: We found no significant association of levothyroxine treatment and incident dementia among patients with AF, which contrasts some earlier findings.
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2.
  • Li, Xinjun, et al. (författare)
  • Association Between Neighborhood Deprivation and Heart Failure Among Patients With Diabetes Mellitus : A 10-Year Follow-Up Study in Sweden
  • 2020
  • Ingår i: Journal of Cardiac Failure. - : Elsevier BV. - 1071-9164. ; 26:3, s. 193-199
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Our aim was to study the potential effect of neighborhood deprivation on incident heart failure (HF) in patients with diabetes mellitus (DM). Methods: The study population included adults (n = 434,542) aged 30 years or older with DM followed from 2005 to 2015 in Sweden for incident HF. The association between neighborhood deprivation and the outcome was explored using Cox regression analysis, with hazard ratios (HRs) and 95% confidence intervals (95% CIs). All models were conducted in both men and women and adjusted for age, educational level, family income, employment status, region of residence, immigrant status, marital status, mobility, and comorbidities. DM patients living in neighborhoods with high or moderate levels of deprivation were compared with those living in neighborhoods with low deprivation scores (reference group). Results: There was an association between level of neighborhood deprivation and HF in DM patients. The HRs were 1.27, 95% CI 1.21–1.33, for men and 1.30, 95% CI 1.23–1.37, for women) among DM patients living in high deprivation neighborhoods compared with those from low deprivation neighborhoods. After adjustments for potential confounders, the higher HRs of HF remained significant: 1.11, 95% CI 1.06–1.16, in men and 1.15, 95% CI 1.09–1.21, in women living in high deprivation neighborhoods. Conclusions: Increased incidence rates of HF among DM patients living in deprived neighborhoods raise important clinical and public health concerns. These findings could serve as an aid to policy-makers when allocating resources in primary health-care settings as well as to clinicians who encounter patients in deprived neighborhoods.
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3.
  • Crump, Casey, et al. (författare)
  • Early-Life Cardiorespiratory Fitness and Long-term Risk of Prostate Cancer
  • 2020
  • Ingår i: Cancer Epidemiology, Biomarkers and Prevention. - 1055-9965 .- 1538-7755. ; 29:11, s. 2187-2194
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Adolescence is a period of rapid prostatic growth, yet is understudied for susceptibility for future risk of prostate cancer. We examined cardiorespiratory fitness (CRF) in late adolescence in relation to long-term prostate cancer risk.Methods: A population-based cohort study was conducted of all 699,125 Swedish military conscripts during 1972–1985 (97%–98% of 18-year-old men) in relation to risk of prostate cancer overall, aggressive prostate cancer, and prostate cancer mortality during 1998–2017 (ages 50–65 years). CRF was measured by maximal aerobic workload, and prostate cancer was ascertained using the National Prostate Cancer Register. Muscle strength was examined as a secondary predictor.Results: In 38.8 million person-years of follow-up, 10,782 (1.5%) men were diagnosed with prostate cancer. Adjusting for sociodemographic factors, height, weight, and family history of prostate cancer, high CRF was associated with a slightly increased risk of any prostate cancer [highest vs. lowest quintile: incidence rate ratio (IRR), 1.10; 95% CI, 1.03–1.19; P = 0.008], but was neither significantly associated with aggressive prostate cancer (1.01; 0.85–1.21; P = 0.90) nor prostate cancer mortality (1.24; 0.73–2.13; P = 0.42). High muscle strength also was associated with a modestly increased risk of any prostate cancer (highest vs. lowest quintile: IRR, 1.14; 95% CI, 1.07–1.23; P < 0.001), but neither with aggressive prostate cancer (0.88; 0.74–1.04; P = 0.14) nor prostate cancer mortality (0.81; 0.48–1.37; P = 0.43).Conclusions: High CRF or muscle strength in late adolescence was associated with slightly increased future risk of prostate cancer, possibly related to increased screening, but neither with risk of aggressive prostate cancer nor prostate cancer mortality.Impact: These findings illustrate the importance of distinguishing aggressive from indolent prostate cancer and assessing for potential detection bias.
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4.
  • Hemminki, Kari, et al. (författare)
  • Autoimmune diseases and hematological malignancies : exploring the underlying mechanisms from epidemiological evidence
  • 2020
  • Ingår i: Seminars in Cancer Biology. - : Elsevier BV. - 1096-3650 .- 1044-579X. ; 64, s. 114-121
  • Forskningsöversikt (refereegranskat)abstract
    • Autoimmune diseases are characterized by the irregular functioning of the immune system that leads to the loss of tolerance to self-antigens. The underlying nature of autoimmune diseases has led to speculation that the risk of malignancy might be higher or lower in patients with such diseases. However, the rarity and heterogeneity of both autoimmune diseases and malignancies is the main challenge for systematic exploration of associations between autoimmune diseases and cancer. The nationwide usages of electronic health records in Sweden and other countries has created longitudinal clinical datasets of large populations, which are ideal for quantifying the associations as well as possible guidance concerning the underlying mechanisms. In this report, we firstly summarize the population-based epidemiological association studies between autoimmune diseases and subsequent hematological malignancies using data derived mainly from Swedish nationwide data. These include over one million cancer cases and approximately 500,000 patients with medically diagnosed autoimmune disease. We further discuss the underlying mechanisms that contribute to the observed association between autoimmune diseases and hematological malignancies, including shared genetics, environmental factors, medical treatments of autoimmune diseases as well as dysregulated immune function.
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5.
  • Vats, Sakshi, et al. (författare)
  • Associations of global DNA methylation and homocysteine levels with abdominal aortic aneurysm : A cohort study from a population-based screening program in Sweden
  • 2020
  • Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273. ; 321, s. 137-142
  • Tidskriftsartikel (refereegranskat)abstract
    • Abdominal aortic aneurysm (AAA) is a life-threatening condition with a mortality rate of over 80%. Persistent smoking, which is a risk factor for AAA, has lasting effects on DNA methylation. Moreover, a plasma-amino acid, homocysteine, previously implicated in vascular diseases, including aneurysms, has well-established biological association with methylation. In the present study, we aimed to determine the global DNA methylation, homocysteine levels and their association with AAA and its growth. Enzyme-linked immunosorbent assay (ELISA) was used to quantify global DNA methylation in whole blood-DNA samples and diagnostic enzymatic assay quantified plasma homocysteine, from 65-year old men with (n = 116) and without AAA (n = 230) diagnosed at ultrasound screening. We found significantly higher global DNA methylation (p < .001) and homocysteine levels (p < .001) in men with AAA compared to those without AAA, and direct linear associations with baseline aortic diameter. On multivariable regression analysis, global DNA methylation (odds ratio [OR]: 1.8; 95% confidence interval [CI]: 1.1-2.9) and homocysteine levels (OR: 1.1; 95% CI:1.0-1.1) were positively associated with AAA, independent of smoking, medication use, and major co-morbidities. However, we did not find any significant association between DNA methylation or homocysteine levels with AAA growth during follow-up. We found that global DNA methylation and homocysteine levels are higher in men with AAA but are not associated with AAA growth. This indicates that different pathways and mechanisms may be involved in initiation and progression of AAA. More studies are needed to understand the precise role of DNA methylation, homocysteine and their interplay in AAA pathophysiology.
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6.
  • Crump, Casey, et al. (författare)
  • Healthcare utilisation prior to suicide in persons with alcohol use disorder : National cohort and nested case-control study
  • 2020
  • Ingår i: British Journal of Psychiatry. - : Royal College of Psychiatrists. - 0007-1250 .- 1472-1465. ; 217:6, s. 710-716
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Alcohol use disorder (AUD) is common and associated with increased risk of suicide. Aims To examine healthcare utilisation prior to suicide in persons with AUD in a large population-based cohort, which may reveal opportunities for prevention. Method A national cohort study was conducted of 6 947 191 adults in Sweden in 2002, including 256 647 (3.7%) with AUD, with follow-up for suicide through 2015. A nested case-control design examined healthcare utilisation among people with AUD who died by suicide and 10:1 age- and gender-matched controls. Results In 86.7 million person-years of follow-up, 15 662 (0.2%) persons died by suicide, including 2601 (1.0%) with AUD. Unadjusted and adjusted relative risks for suicide associated with AUD were 8.15 (95% CI 7.86-8.46) and 2.22 (95% CI 2.11-2.34). Of the people with AUD who died by suicide, 39.7% and 75.6% had a healthcare encounter <2 weeks or <3 months before the index date respectively, compared with 6.3% and 25.4% of controls (adjusted prevalence ratio (PR) and difference (PD), <2 weeks: PR = 3.86, 95% CI 3.50-4.25, PD = 26.4, 95% CI 24.2-28.6; <3 months: PR = 2.03, 95% CI 1.94-2.12, PD = 34.9, 95% CI 32.6-37.1). AUD accounted for more healthcare encounters within 2 weeks of suicide among men than women (P = 0.01). Of last encounters, 48.1% were in primary care and 28.9% were in specialty out-patient clinics, mostly for non-psychiatric diagnoses. Conclusions Suicide among persons with AUD is often shortly preceded by healthcare encounters in primary care or specialty out-patient clinics. Encounters in these settings are important opportunities to identify active suicidality and intervene accordingly in patients with AUD.
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7.
  • Crump, Casey, et al. (författare)
  • Pre-Term Delivery and Risk of Ischemic Heart Disease in Women
  • 2020
  • Ingår i: Journal of the American College of Cardiology. - : Elsevier BV. - 0735-1097. ; 76:1, s. 57-67
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Women who deliver pre-term have been reported to have increased future risks of cardiometabolic disorders. However, their long-term risks of ischemic heart disease (IHD) and whether such risks are due to shared familial factors are unclear. A better understanding of these risks may help improve long-term clinical follow-up and interventions to prevent IHD in women. Objectives: The purpose of this study was to determine the long-term risks of IHD in women by pregnancy duration. Methods: A national cohort study was conducted of all 2,189,190 women with a singleton delivery in Sweden from 1973 to 2015, who were followed up for IHD through the end of 2015. Cox regression was used to compute adjusted hazard ratios (aHRs) for IHD associated with pregnancy duration, and cosibling analyses assessed the influence of shared familial (genetic and/or environmental) factors. Results: In 47.5 million person-years of follow-up, 49,955 (2.3%) women were diagnosed with IHD. In the 10 years following delivery, the aHR for IHD associated with pre-term delivery (<37 weeks) was 2.47 (95% confidence interval [CI]: 2.16 to 2.82), and further stratified was 4.04 (95% CI: 2.69 to 6.08) for extremely pre-term (22 to 27 weeks), 2.62 (95% CI: 2.09 to 3.29) for very pre-term (28 to 33 weeks), 2.30 (95% CI: 1.97 to 2.70) for late pre-term (34 to 36 weeks), and 1.47 (95% CI: 1.30 to 1.65) for early-term (37 to 38 weeks), compared with full-term (39 to 41 weeks). These risks declined but remained significantly elevated after additional follow-up (pre-term vs. full-term, 10 to 19 years: aHR: 1.86; 95% CI: 1.73 to 1.99; 20 to 29 years: aHR: 1.52; 95% CI: 1.45 to 1.59; 30 to 43 years: aHR: 1.38; 95% CI: 1.32 to 1.45). These findings did not appear attributable to shared genetic or environmental factors within families. Additional pre-term deliveries were associated with further increases in risk. Conclusions: In this large national cohort, pre-term delivery was a strong independent risk factor for IHD. This association waned over time but remained substantially elevated up to 40 years later. Pre-term delivery should be recognized as a risk factor for IHD in women across the life course.
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8.
  • Crump, Casey, et al. (författare)
  • Risk of hypertension into adulthood in persons born prematurely : A national cohort study
  • 2020
  • Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 41:16, s. 1542-1550
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims: Preterm birth has been associated with elevated blood pressure early in life; however, hypertension risks from childhood into adulthood remain unclear. We conducted a large population-based study to examine gestational age at birth in relation to hypertension risks from childhood into adulthood. Methods and results: A national cohort study was conducted of all 4 193 069 singleton live births in Sweden during 1973-2014, who were followed up for hypertension identified from nationwide inpatient and outpatient (specialty and primary care) diagnoses from any health care encounters through 2015 (maximum age 43 years; median 22.5). Cox regression was used to examine gestational age at birth in relation to hypertension risk while adjusting for other perinatal and maternal factors, and co-sibling analyses assessed the potential influence of unmeasured shared familial (genetic and/or environmental) factors. In 86.8 million person-years of follow-up, 62 424 (1.5%) persons were identified with hypertension (median age 29.8 years at diagnosis). Adjusted hazard ratios for new-onset hypertension at ages 18-29 years associated with preterm (<37 weeks) and extremely preterm (22-27 weeks) birth were 1.28 [95% confidence interval (CI), 1.21-1.36] and 2.45 (1.82-3.31), respectively, and at ages 30-43 years were 1.25 (1.18-1.31) and 1.68 (1.12-2.53), respectively, compared with full-Term birth (39-41 weeks). These associations affected males and females similarly and appeared substantially related to shared genetic or environmental factors in families. Conclusions: In this large national cohort, preterm birth was associated with increased risk of hypertension into early adulthood. Persons born prematurely may need early preventive evaluation and long-Term monitoring for the development of hypertension.
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9.
  • Edwards, Alexis C., et al. (författare)
  • Alcohol Use Disorder and Risk of Suicide in a Swedish Population-Based Cohort
  • 2020
  • Ingår i: The American journal of psychiatry. - : American Psychiatric Association Publishing. - 1535-7228 .- 0002-953X. ; 177:7, s. 627-634
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The authors examined the association between alcohol use disorder (AUD) and risk of suicide, before and after accounting for psychiatric comorbidity, and assessed the extent to which the observed association is due to a potentially causal mechanism or genetic and familial environmental confounding factors that increase risk for both. METHODS: Longitudinal population-wide Swedish medical, criminal, and pharmacy registries were used to evaluate the risk of death by suicide as a function of AUD history. Analyses employed prospective cohort and co-relative designs, including data on 2,229,880 native Swedes born between 1950 and 1970 and observed from age 15 until 2012. RESULTS: The lifetime rate of suicide during the observation period was 3.54% for women and 3.94% for men with AUD, compared with 0.29% and 0.76% of women and men, respectively, without AUD. In adjusted analyses, AUD remained robustly associated with suicide: hazard ratios across observation periods ranged from 2.61 to 128.0 among women and from 2.44 to 28.0 among men. Co-relative analyses indicated that familial confounding accounted for some, but not all, of the observed association. A substantial and potentially causal relationship remained after accounting for a history of other psychiatric diagnoses. CONCLUSIONS: AUD is a potent risk factor for suicide, with a substantial association persisting after accounting for confounding factors. These findings underscore the impact of AUD on suicide risk, even in the context of other mental illness, and implicate the time frame shortly after a medical or criminal AUD registration as critical for efforts to reduce alcohol-related suicide.
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10.
  • Kendler, Kenneth S., et al. (författare)
  • An extended swedish national adoption study of bipolar disorder illness and cross-generational familial association with schizophrenia and major depression
  • 2020
  • Ingår i: JAMA Psychiatry. - : American Medical Association (AMA). - 2168-622X. ; 77:8, s. 814-822
  • Tidskriftsartikel (refereegranskat)abstract
    • Importance: Information about how risk for bipolar disorder is transmitted across generations and how parental risk for bipolar disorder relates to their children's risk for schizophrenia and major depression is limited. Objective: To evaluate the sources of parent-offspring transmission of bipolar disorder and its familial cross-generational association with schizophrenia and major depression. Design, Setting, and Participants: Parents and offspring (born 1960-1990) from 4 family types were ascertained from Swedish national samples: intact (offspring, n = 2175259), not-lived-with biological father (n = 152436), lived-with stepfather (n = 73 785), and adoptive (n = 15 624). Data analysis was conducted from October 28, 2019, to January 8, 2020. Exposures: Three sources of parent-offspring resemblance: genes plus rearing, genes only, and rearing only. Main Outcomes and Measures: Diagnosis of bipolar disorder, broad schizophrenia (ie, schizophrenia as a 3-level variable: unaffected, nonaffective psychosis, and schizophrenia) and major depression obtained from Swedish national registries. Parent-offspring resemblance was assessed primarily by tetrachoric correlation (ie, correlation of liability) and for key results, odds ratios (ORs) from logistic regression. Cross-generational associations of bipolar disorder with broad schizophrenia and major depression were assessed by their transmission from bipolar disorder in parents and transmission to bipolar disorder in offspring. Results: The study population included 2417104 individuals of 4 family types (51.8% male and 48.2% female; median age, 41 [range, 25-60] years). For bipolar disorder to bipolar disorder transmission, tetrachoric correlations for 3 types of parent-offspring relationships were statistically homogeneous across family type and mothers and fathers for genes plus rearing (0.25; 95% CI, 0.24-0.26), genes only (0.22; 95% CI, 0.18-0.26), and rearing only (0.07; 95% CI, -0.01 to 0.15). Parallel ORs were 5.20 (95% CI, 4.91-5.50), 3.66 (95% CI, 2.97-4.51), and 1.63 (95% CI, 0.96-2.78). Best-estimate, cross-disorder tetrachoric correlations for 3 types of parent-offspring relationships for bipolar disorder and broad schizophrenia were 0.12 (95% CI, 0.11-0.13) for genes plus rearing, 0.12 (95% CI, 0.09-0.14) for genes only, and -0.03 (95% CI, -0.11 to 0.04) for rearing only, with parallel ORs of 1.95 (95% CI, 1.93-1.97), 2.04 (95% CI, 1.75-2.38), and 0.76 (95% CI, 0.43-1.35). For bipolar disorder and major depression, the parallel tetrachoric correlations were 0.09 (95% CI, 0.07-0.10) for genes plus rearing, 0.04 (95% CI, 0.01-0.07) for genes only, and 0.05 (95% CI, 0.01-0.08) for rearing only; parallel ORs were 1.53 (95% CI, 1.50-1.57), 1.23 (95% CI, 1.13-1.34), and 1.25 (95% CI, 1.09-1.42). Heritability for bipolar disorder was estimated at 0.44 (95% CI, 0.36-0.48). Genetic correlations were estimated at 0.572 (95% CI, 0.560-0.589) between bipolar disorder and broad schizophrenia and 0.302 (95% CI, 0.001-0.523) between bipolar disorder and major depression. Conclusions and Relevance: The findings of this study suggest that genes are largely responsible for bipolar disorder transmission across generations, although modest rearing effects are also likely present. Cross-generational transmission between bipolar disorder and broad schizophrenia appears to be entirely genetic with a moderate genetic correlation; for bipolar disorder and major depression, transmission appears to result equally from genes and rearing with a modest genetic correlation..
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