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- Feldman, AL, et al.
(författare)
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Familial coaggregation of Alzheimer's disease and Parkinson's disease: systematic review and meta-analysis
- 2014
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Ingår i: Neuroepidemiology. - : S. Karger AG. - 1423-0208 .- 0251-5350. ; 42:2, s. 69-80
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Tidskriftsartikel (refereegranskat)abstract
- <b><i>Background:</i></b> Familial aggregation has been shown for Alzheimer's disease (AD) and Parkinson's disease (PD) separately, and it has been hypothesized that these diseases also coaggregate in families. <b><i>Methods:</i></b> The authors investigated familial coaggregation of AD and PD by conducting a systematic review and meta-analysis. PubMed was searched for relevant studies published through the end of October 2012. Three independent investigators screened publications and extracted data. Relative risk estimates of AD risk associated with family history of PD or parkinsonism, or PD risk associated with family history of AD or dementia, were summarized into metaestimates using random effects models. Heterogeneity and publication bias were tested using Higgins' and Egger's tests, respectively. <b><i>Results:</i></b> We included 16 studies in the review, with 14 included in any meta-analysis. AD risk associated with family history of PD yielded a summary hazard ratio of 1.18 (95% CI: 1.00-1.39) based on 5 reconstructed cohort studies and a summary odds ratio (OR) of 1.40 (95% CI: 0.92-2.12) based on 7 case-control studies. PD risk associated with family history of AD yielded a summary OR of 0.75 (95% CI: 0.49-1.16) based on 3 studies. There was no significant heterogeneity among studies, nor significant publication bias. <b><i>Conclusions:</i></b> There may be familial coaggregation of AD and PD, although the association was modest and only apparent when studying AD risk associated with family history of PD.
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- Sieurin, J, et al.
(författare)
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A population-based cohort study of sex and risk of severe outcomes in covid-19
- 2022
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Ingår i: European journal of epidemiology. - : Springer Science and Business Media LLC. - 1573-7284 .- 0393-2990. ; 37:11, s. 1159-1169
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Tidskriftsartikel (refereegranskat)abstract
- There is a male sex disadvantage in morbidity and mortality due to COVID-19. Proposed explanations to this disparity include gender-related health behaviors, differential distribution of comorbidities and biological sex differences. In this study, we investigated the association between sex and risk of severe COVID-19 while adjusting for comorbidities, socioeconomic factors, as well as unmeasured factors shared by cohabitants which are often left unadjusted. We conducted a total-population-based cohort study (n = 1,854,661) based on individual-level register data. Cox models was used to estimate the associations between sex and risk for severe COVID-19. We additionally used a within-household design and conditional Cox models aiming to account for unmeasured factors shared by cohabitants. A secondary aim was to compare the risk of COVID-19 related secondary outcomes between men and women hospitalized due to COVID-19 using logistic regression. Men were at higher risk for hospitalization (HR = 1.63;95%CI = 1.57–1.68), ICU admission (HR = 2.63;95%CI = 2.38–2.91) and death (HR = 1.81;95%CI = 1.68–1.95) due to COVID-19, based on fully adjusted models. However, the effect of sex varied significantly across age groups: Among people in their 50s, men had > four times higher risk of COVID-19 death. The within-household design did not provide any further explanation to the sex disparity. Among patients hospitalized due to COVID-19, men had an increased risk for viral pneumonia, acute respiratory distress syndrome, acute respiratory insufficiency, acute kidney injury, and sepsis which persisted in fully adjusted models. Recognition of the combined effect of sex and age on COVID-19 outcomes has implications for policy strategies to reduce the adverse effects of the disease.
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