विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| संभावित स्क्रीनिंग परीक्षण मूल्यांकन× | अनुप्रस्थ काट (Cross-sectional) महामारी विज्ञान अध्ययन× | |
|---|---|---|
| क्षेत्र | महामारी विज्ञान | महामारी विज्ञान |
| परिवार | Process / pipeline | Process / pipeline |
| उद्भव वर्ष≠ | 1980s–2000s (STARD 2003, updated 2015) | 1960s (formal codification); widely practiced since mid-20th century |
| प्रवर्तक≠ | Formalized through diagnostic accuracy methodology (Sackett, Haynes, Tugwell; STARD initiative) | Classical epidemiology tradition; systematized by Brian MacMahon and Thomas Pugh (1960s) |
| प्रकार≠ | Prospective observational study design | Observational, descriptive/analytic epidemiological design |
| मौलिक स्रोत≠ | Bossuyt, P. M., Reitsma, J. B., Bruns, D. E., et al. (2015). STARD 2015: An Updated List of Essential Items for Reporting Diagnostic Accuracy Studies. BMJ, 351, h5527. DOI ↗ | Kelsey, J. L., Whittemore, A. S., Evans, A. S., & Thompson, W. D. (1996). Methods in Observational Epidemiology (2nd ed.). Oxford University Press. ISBN: 978-0195080407 |
| उपनाम | prospective diagnostic accuracy study, prospective test performance study, forward-looking screening validation, prospective DTA study | prevalence study, cross-sectional survey, transversal study, cross-sectional design |
| संबंधित | 6 | 6 |
| सारांश≠ | A prospective screening test evaluation enrolls participants before the outcome is known, applies the screening test and the reference standard in temporal sequence, and measures how accurately the test identifies individuals with or without the target condition. This forward-looking design minimizes workup bias and spectrum bias, producing estimates of sensitivity, specificity, and predictive values that are more generalizable to real clinical or public-health screening contexts than retrospective alternatives. | A cross-sectional epidemiological study measures the exposure(s) and outcome(s) of interest simultaneously in a defined population at a single point in time (or over a short period). Because there is no follow-up, it is the most efficient observational design for estimating disease prevalence and for generating hypotheses about associations between risk factors and health outcomes. |
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