abstract: Measuring the effect of including multiple cancers in survival analyses using data from the Canadian Cancer Registry Ovarian Cancer and Us OVARIAN CANCER and US Ovarian Cancer and Us

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Tuesday, July 20, 2010

abstract: Measuring the effect of including multiple cancers in survival analyses using data from the Canadian Cancer Registry



Background: In survival analyses using cancer registry data, second and subsequent primary cancers diagnosed in individuals are typically excluded.

Conclusion: Inclusion of second and subsequent primary cancers in the analysis tended to lower estimates of relative survival, the extent of which varied by cancer and age and depended in part on the proportion of first primary cancers.

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