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جلد 3 شماره 3 صفحات 495-488 برگشت به فهرست نسخه ها
Methodological issues of confounding in analytical epidemiologic studies
چکیده:   (6938 مشاهده)
Background: Confounding can be thought of as mixing the effect of exposure on the risk of disease with a third factor which distorts the measure of association such as risk ratio or odds ratio. This bias arises because of complex functional relationship of confounder with both exposure and disease (outcome). In this article, we provided a conceptual framework review of confounding issues in epidemiologic studies, in particular in observational studies and nonrandomized experimental studies. We have shown in 2 by 2 tables with analytical examples how the index of association will be distorted when confounding is present. The criteria, source of confounding and several points in confounding issues have been addressed. The advantages and disadvantages of several strategies for control of confounding have been discussed.
متن کامل [PDF 120 kb]   (1870 دریافت)    
نوع مطالعه: Original Article | موضوع مقاله: Infectious Diseases
دریافت: 1392/10/25 | پذیرش: 1392/10/25 | انتشار: 1392/10/25
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Hajian Tilaki K. Methodological issues of confounding in analytical epidemiologic studies. Caspian J Intern Med. 2012; 3 (3) :488-495
URL: http://caspjim.com/article-1-162-fa.html

Methodological issues of confounding in analytical epidemiologic studies. 1. 1390; 3 (3) :495-488

URL: http://caspjim.com/article-1-162-fa.html



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دوره 3، شماره 3 - ( 10-1390 ) برگشت به فهرست نسخه ها
Caspian Journal of Internal Medicine
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