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| دراسة حالة وضابط متكيفة متداخلة× | دراسة الأتراب× | |
|---|---|---|
| المجال | علم الأوبئة | علم الأوبئة |
| العائلة | Process / pipeline | Process / pipeline |
| سنة النشأة≠ | Base design 1977; adaptive extensions from 1990s onward | Mid-20th century (formal epidemiological design codified ~1950s) |
| صاحب الطريقة≠ | Nested case-control: D. C. Thomas (1977); adaptive design framework: Peter Bauer & Klaus Kohne (1994) | Doll & Hill (British Doctors Study, 1951); Snow (cholera, 1854) |
| النوع≠ | Observational epidemiological study with adaptive design elements | Observational longitudinal study design |
| المصدر التأسيسي≠ | Thomas, D. C. (1977). Addendum to: Methods of cohort analysis: Appraisal by application to asbestos mining. Journal of the Royal Statistical Society, Series A, 140(4), 469–491. DOI ↗ | Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641 |
| الأسماء البديلة | adaptive NCC, adaptive nested case-referent study, dynamic nested case-control, sequential nested case-control | longitudinal study, follow-up study, panel study, incidence study |
| ذات صلة | 6 | 6 |
| الملخص≠ | An adaptive nested case-control study embeds a case-control comparison within a defined cohort and incorporates pre-specified interim decision rules that allow modifications — such as control-to-case ratio adjustment or biomarker sub-sampling revision — based on accumulating data, without compromising the study's validity or inflating type I error. The design combines the efficiency of the nested case-control framework with the flexibility of adaptive methodology to optimise resource use when exposure assessment is costly. | A cohort study assembles a group of individuals who share a common starting point — typically freedom from the outcome of interest — and follows them over time to observe who develops the outcome. By comparing incidence rates between exposed and unexposed subgroups, researchers can estimate relative risk and absolute risk differences. Cohort studies are the gold-standard observational design for measuring disease incidence and establishing temporal relationships between exposure and outcome. |
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