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Validity of random-digit-dialing in recruiting controls in a case-control study.
- Source :
-
American Journal of Health Behavior . Sep/Oct2009, Vol. 33 Issue 5, p513-520. 8p. - Publication Year :
- 2009
-
Abstract
- OBJECTIVES: To evaluate whether the participating controls represented the underlying population in a colorectal cancer case-control study in a geographically isolated North American population. METHODS: The characteristics of the study controls recruited through Random-digit-dialing (RDD) were compared with those in the corresponding target population estimates. RESULTS: Participating controls were more likely to have higher levels of education and income and were less likely to be smokers. CONCLUSION: Study controls recruited through RDD tend to have higher socioeconomic status, which may lead to overestimation of a number of risk factors in this study. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10873244
- Volume :
- 33
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- American Journal of Health Behavior
- Publication Type :
- Academic Journal
- Accession number :
- 105336643
- Full Text :
- https://doi.org/10.5993/ajhb.33.5.4