Slide 10. Follow up and Surveillance Assumptions.

Slide 10Follow up and Surveillance Assumptions

SLIDE 10 NOTES: We based our adherence (compliance) assumptions on the Behavioral Risk Factor Surveillance System. In that survey, 70 percent of people report ever having had any CRC screening modality in their lifetime. In the population, of course, people can choose one or more screening modalities from the milieu that are available. Although people report different rates of adherence for different modalities, we do not know how they would behave if they were offered just one. In the modeling context, we must evaluate a specific screening strategy that excludes the full range of choice currently available in the community.

Among those patients adherent with any screening, (i.e., 70 percent) there were different sub-populations adherent at different maximum testing frequencies. This maximum testing frequency was programmed as a patient-specific characteristic. In practice, this created rates of effective adherence that varied between testing modalities and screening strategies (e.g. effective adherence for annual FOBT = 35 percent).

From: Appendix G, The Vanderbilt Colorectal Cancer Model

Cover of Economic Models of Colorectal Cancer Screening in Average-Risk Adults
Economic Models of Colorectal Cancer Screening in Average-Risk Adults: Workshop Summary.
Institute of Medicine (US); National Research Council (US); Pignone M, Russell L, Wagner J, editors.
Washington (DC): National Academies Press (US); 2005.
Copyright © 2005, National Academy of Sciences.

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