Case-control studies – the retrospective perspective
نویسندگان
چکیده
منابع مشابه
Telomere length in prospective and retrospective cancer case-control studies.
Previous studies have reported that shorter mean telomere length in lymphocytes was associated with increased susceptibility to common diseases of aging, and may be predictive of cancer risk. However, most analyses have examined retrospectively collected case-control studies. Mean telomere length was measured using high-throughput quantitative real-time PCR. Blood for DNA extraction was collect...
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Retrospective case-control studies are more susceptible to selection bias than other epidemiologic studies as by design they require that both cases and controls are representative of the same population. However, as cases and control recruitment processes are often different, it is not always obvious that the necessary exchangeability conditions hold. Selection bias typically arises when the s...
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چکیده ندارد.
15 صفحه اولRetrospective-prospective symmetry in the likelihood and Bayesian analysis of case-control studies
Prentice & Pyke (1979) established that the maximum likelihood estimate of an odds ratio in a case-control study is the same as would be found by fitting a logistic regression; in other words, for this specific target the incorrect prospective model is inferentially equivalent to the correct retrospective model. Similar results have been obtained for other models, and conditions have also been ...
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ژورنال
عنوان ژورنال: Medwave
سال: 2014
ISSN: 0717-6384
DOI: 10.5867/medwave.2014.02.5925