পদ্ধতির তুলনা করুন
নির্বাচিত পদ্ধতিগুলো পাশাপাশি পর্যালোচনা করুন; যে সারিগুলোয় পার্থক্য আছে সেগুলো চিহ্নিত করা হয়।
| প্র্যাগম্যাটিক নেস্টেড কেস-কন্ট্রোল স্টাডি× | কেস-কন্ট্রোল স্টাডি× | |
|---|---|---|
| ক্ষেত্র | মহামারীবিদ্যা | মহামারীবিদ্যা |
| পরিবার | Process / pipeline | Process / pipeline |
| উদ্ভবের বছর≠ | 1977 (nested case-control); pragmatic variant emerged in real-world evidence research from 1990s onwards | 1950s (formal methodology); precursors in the 1920s |
| প্রবর্তক≠ | Duncan Thomas (nested case-control); pragmatic design concept from Schwartz & Lellouch (1967) | Janet Lane-Claypon (early precursors, 1926); formalized by Brian MacMahon and Jerome Cornfield in the 1950s–1960s |
| ধরন≠ | Observational epidemiological study design | Observational analytic study design |
| মৌলিক উৎস≠ | 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. link ↗ | Schlesselman, J.J. (1982). Case-Control Studies: Design, Conduct, Analysis. Oxford University Press. ISBN: 978-0195027860 |
| অপর নাম | real-world nested case-control, pragmatic NCC, nested case-control in routine data, real-world evidence nested case-control | case-referent study, case-control design, retrospective case-control, case-control analysis |
| সম্পর্কিত≠ | 5 | 6 |
| সারসংক্ষেপ≠ | A pragmatic nested case-control study embeds a case-control analysis within a pre-existing real-world cohort — typically drawn from electronic health records, administrative claims, or disease registries — to examine associations between exposures and outcomes under routine clinical conditions. Controls are sampled from the risk set (those still at risk at the time each case occurs), preserving temporal sequence while dramatically reducing data-collection costs compared with a full cohort analysis. | A case-control study is a retrospective observational design in which individuals who have developed a disease or outcome of interest (cases) are compared with individuals who have not (controls) to determine whether prior exposure to a putative risk factor differs between the two groups. The primary measure of association is the odds ratio, which approximates the relative risk when the outcome is rare. Case-control studies are especially efficient for investigating rare diseases and generating etiological hypotheses. |
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