Loading in 2 Seconds...
Loading in 2 Seconds...
Advanced Data Analysis: Methods to Control for Confounding (Matching and Logistic Regression). Goals. Understand the issue of confounding in statistical analysis Learn how to use matching and logistic regression to control for confounding. Confounding.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Did have punch
Did not have punch
Did have cookies
Did not have cookies
Table 1: Analysis of matched pairs for a case control study
Table 2: Sample data for sudden illness in a high school.
Controls matched to cases on gender, grade, and hallway in the school
OR = (# pairs with exposed cases and unexposed cases)
(# pairs with unexposed cases and exposed controls)
= f / g = 12/4 = 3.0
(Episheet cannot do logistic regression but is useful for simpler analyses, e.g., 2x2 tables and stratified analyses.)
*This is not a comprehensive list, and UNC does not specifically
endorse any particular software package.
1. Gregg MB. Field Epidemiology. 2nd ed. New York, NY: Oxford University Press; 2002.
2. Hecht CA, Hook EB. Rates of Down syndrome at livebirth by one-year maternal age intervals in studies with apparent close to complete ascertainment in populations of European origin: a proposed revised rate schedule for use in genetic and prenatal screening. Am J Med Genet. 1996;62:376-385.
3. Humphrey LL, Nelson HD, Chan BKS, Nygren P, Allan J, Teutsch S. Relationship between hormone replacement therapy, socioeconomic status, and coronary heart disease. JAMA. 2003;289:45.
4. Centers for Disease Control and Prevention. Update: Outbreaks of Cyclosporiasis -- United States, 1997. MMWR Morb Mort Wkly Rep. 1997;46:461-462. Available at: http://www.cdc.gov/mmwr/PDF/ wk/mm4621.pdf.Accessed December 12, 2006.
5. Centers for Disease Control and Prevention. Self-reported concern about food security associated with obesity --- Washington, 1995—1999. MMWR Morb Mort Wkly Rep. 2003;52:840-842. Available at: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5235a3.htm. Accessed December 12, 2006.