The Use of Cohort vs Repeated Cross-Sectional Sample Survey Data in Monitoring Changing Breast Cancer Screening Practices

The cohort method permits examination of changes in the same individual over time and is less costly and less time-consuming to perform and better reflects the changing community.

Abstract

Each of the two survey methods has advantages and disadvantages with respect to the other. The cohort method permits examination of changes in the same individual over time and is less costly and less time-consuming to perform. On the other hand, the cross-sectional method does not suffer from cumulative losses in respondents with repeated surveys and better reflects the changing community. The study findings can be used to guide the selection of an appropriate survey methodology for monitoring breast cancer screening practices in other settings.