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日期:2025-04-29
To give an extreme example, a case-control study of bladder cancer and smoking could give quite erroneous findings if controls were taken from ......
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日期:2025-04-25
http://www.stomponstep1.com/cohort-ca... Based on the types of bias that are inherent in some study designs we can rank different study designs based on their validity. The types of research studies at the top of the list have the highest validity while t...
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日期:2025-04-30
Cohort, cross sectional, and case–control studies are collectively referred to as observational studies. ... A recent example of a cross sectional study looked at the ability of middle grade doctors to interpret trauma CT scans. 8 A recent analysis of ED ...
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日期:2025-04-25
Study Designs Cross-sectional Case-control 1 ... Sharon - the idea here is like the relation between oral contraceptives and thromboembolism. Because physicians were more likely to hospitalize women presenting with symptoms of thromboembolism if they ......
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日期:2025-05-02
A case-control study is a type of study design used widely, originally developed in epidemiology, although its use has also been advocated for the social sciences.[1][2] It is a type of observational study in which two existing groups differing in outcome...
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日期:2025-05-01
As we will see later, the incidence in different groups in a case-control study is compared using Odds Ratio (OR). Case-Series ... Cross-sectional Study Cross Sectional Studies are different from the others we have discussed. While the other studies measu...
Visceral obesity and insulin resistance as risk factors for colorectal adenoma: a cross-sectional, c
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日期:2025-04-30
1. Am J Gastroenterol. 2010 Jan;105(1):178-87. doi: 10.1038/ajg.2009.541. Epub 2009 Sep 15. Visceral obesity and insulin resistance as risk factors for colorectal adenoma: a cross-sectional, case-control study. Kang HW, Kim D, Kim HJ, Kim CH, Kim YS, Park...
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日期:2025-04-25
1. Am J Gastroenterol. 2000 Jan;95(1):183-9. Risk of fractures in celiac disease patients: a cross-sectional, case-control study. Vasquez H, Mazure R, Gonzalez D, Flores D, Pedreira S, Niveloni S, Smecuol E, Mauriño E, Bai JC. Clinical Service, Hospital d...