(d) FindðAjBÞ (e) Find PðB j AÞ (f) Find the sensitivity of using self-reported breast cancer as a predictor of actual breast cancer in the California registry.
For a variety of reasons, self-reported disease outcomes are frequently used without verification in epidemiologic research. In a study by Parikh-Patel et al. (A-12), researchers looked at the relationship between self-reported cancer cases and actual cases. They used the self-reported cancer data from a California Teachers Study and validated the cancer cases by using the California Cancer Registry data. The following table reports their findings for breast cancer:
Cancer Reported (A) Yes
No
Total
Cancer in Registry (B) 2991
112 3103
Cancer Not in Registry
2244 115849
118093
Total
5235 115961
121196
10.
11.
Source: Arti Parikh-Patel, Mark Allen, William E. Wright, and the California Teachers Study Steering Committee, “Validation of Self-reported Cancers in the California Teachers Study,” American Journal of Epidemiology, 157 (2003), 539–545.
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(d) FindðAjBÞ
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(e) Find PðB j AÞ
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(f) Find the sensitivity of using self-reported breast cancer as a predictor of actual breast cancer in
the California registry.
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