手法を比較

	症例集	診断精度の研究デザイン
分野	疫学	臨床研究
系統	Process / pipeline	Process / pipeline
提唱年	Longstanding; systematized in 20th century clinical research	2003-2015
提唱者	Historical clinical practice; formalized in modern evidence-based medicine literature	Bossuyt, Reitsma, and STARD group (2003); clinical epidemiology pioneers
種類	Observational descriptive study	Research Design
原典	Case series. Wikipedia.	Bossuyt, P. M., Reitsma, J. B., Bruns, D. E., Gatsonis, C. A., Glasziou, P. P., Irwig, L. M., ... & de Vet, H. C. (2003). Towards complete and accurate reporting of studies of diagnostic accuracy: the STARD initiative. Annals of Internal Medicine, 138(1), 40–44.
別名	case series report, clinical case series, consecutive case series, patient series	diagnostic accuracy study, test accuracy, STARD, diagnostic evaluation
関連	5	2
概要	A case series is a descriptive observational study that documents the characteristics, clinical course, and outcomes of a group of patients who share a common condition, exposure, or intervention. Unlike case reports, which focus on a single patient, a case series aggregates data across multiple patients (typically three or more) to identify patterns, generate hypotheses, and characterize rare or novel conditions — without a concurrent control group.	A diagnostic accuracy study evaluates how well a new diagnostic test (or biomarker, imaging modality, clinical assessment) detects the presence or absence of disease compared to a reference standard (gold standard). Standardized since 2003 by the STARD (Standards for Reporting of Diagnostic Accuracy Studies) initiative, diagnostic accuracy studies are fundamental to clinical medicine, determining whether and how new tests can improve patient diagnosis and treatment.