The investigators identified controls for the study using sequential digit dialing. Exposure information among cases was collected for the 7 days before onset of illness. For controls, exposure information was collected for the 7 days before the interview and for the 7 days before the onset of illness in the matching case.
Twenty-seven case-control sets were interviewed; the remaining case-patients could not be reached.
Please answer these questions:
- How would you define controls for this study? What methods might be used to identify controls?
- Do you agree with the investigators’ decision to match on age group and gender? Why or why not?
- Over what time period would you examine exposures to possible risk factors for cases? For controls?
SLP Assignment Expectations
Length: At least 4 pages (1000 words), APA format, scholarly sources.
Required Reading
Centers for Disease Control and Prevention. (2012). Lesson one: Introduction to epidemiology: Section 6: Descriptive epidemiology. In Principles of Epidemiology in Public Health Practice, 3rd Edition. Retrieved May 1, 2019, from https://www.cdc.gov/csels/dsepd/ss1978/lesson1/section6.html
Centers for Disease Control and Prevention. (2012). Lesson one: Introduction to epidemiology: Section 7: Analytical epidemiology. Principles of Epidemiology in Public Health Practice, 3rd Edition. Retrieved May 1, 2019, from https://www.cdc.gov/csels/dsepd/ss1978/lesson1/section7.html
Coggon, D., Rose, G., & Barker, D. J. P. (2007) Chapter 8: Case-control and cross sectional studies. In Epidemiology for the Uninitiated (4th edition). British Medical Journal. Retrieved on May 22, 2012, from http://www.bmj.com/about-bmj/resources-readers/publications/epidemiology-uninitiated
Herbert, R. (2017). Case-control studies. Journal of Physiotherapy,
