Definition Population-based studies aim to answer research questions for defined populations. Answers should be generalizable to the whole population addressed in the study hypothesis, not only to the individuals included in the study. This point addresses the point of external validity of the findings...
In total, 197,853 patients were included in this study. The case-record form for the collected data from the recruited cohort is demonstrated in Supplemental Table 1. Definition of changes in smoking habit Data regarding smoking habits were collected using a self-reported structured questionnaire ...
The results from this large, population-based cohort study showed that children conceived after fertility treatment achieved higher crude overall and individual mandatory examination subject mean marks as well as a lower likelihood of not passing in the ninth grade of the Danish Primary and Lower Seco...
BMC Infectious Diseases 2010, 10:95 http://www.biomedcentral.com/1471-2334/10/95 RESEARCH ARTICLE Open Access RSeaselamrchoartniclee lla enterica bacteraemia: a multi-national population-based cohort study Kevin B Laupland*1, Henrik C Schønheyder2, Karina J Kennedy3, Outi Lyytikäinen4...
We did a large, prospective population-based longitudinal cohort study of all acute cerebrovascular events, irrespective of age, with near-complete ascertainment and a high rate of intracranial vascular imaging. The prevalence of intracranial stenoses in elderly patients with transient ischaemic attack or...
Study outcomes This study investigated newly diagnosed patients with AD. The definition of AD was based on the presence of relevant ICD-10 codes (F00 or G30) and the prescription of medication for AD (galantamine, rivastigmine, donepezil, or memantine), as determined using the NHIS claims dat...
we obtained a comprehensive characterization of the metabolomic and transcriptomic signature of body weight change over a seven-year period in a large population-based cohort. Weight gain and weight loss were strongly and opposingly associated with the blood metabolome, with VLDL, LDL and large HDL...
Findings In this population-based cohort study, the adjusted hazard ratio of alcohol-related mortality for patients with psoriasis was 1.58 (95% CI, 1.31-1.91) compared with patients without psoriasis. Meaning The elevated risk of alcohol-related mortality found in people with psoriasis calls for ...
We evaluated the potential for selection bias in a recent population-based cohort study with low baseline participation and investigated reasons for nonparticipation. Methods LIFE-Adult is a cohort study in the general population of the city of Leipzig (Germany) designed to gain insights into the ...
Association between thyroid function and osteoarthritis: A population-based cohort study Author links open overlay panelYanning Xu # † ‡, Ingrid A. Szilagyi #, Cindy G. Boer #, Bahar Sedaghati-Khayat #, W. Edward Visser # ‡, Joyce B. van Meurs #, Layal Chaker # † ‡ 1...