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Survival Impact of Tamoxifen Use for Breast Cancer Risk Reduction: Projections from a Patient-Specific Markov ModelDecision Systems Group and Division of General Medicine, Department of Medicine, Brigham and Womens Hospital, Harvard Medical School, Boston, Massachusetts
University of Massachusetts Medical Center, Worcester, Massachusetts
Department of Medical Education, Spartanburg Regional Medical Center, Spartanburg, South Carolina
New England Medical Center, Boston, Massachusetts
Decision Systems Group and Division of General Medicine, Department of Medicine, Brigham and Womens Hospital, Harvard Medical School, Boston, Massachusetts
Harbor-UCLA Research and Education Institute, Torrance, California The authors estimate tamoxifens impact on life expectancy among healthy women. A Markov model compared the effects of 5 years of tamoxifen on survival among 50-year-old postmenopausal women. Scenarios were explored using alternative assumptions with regard to tamoxifens long-term effects on breast and endometrial cancer. Postmenopausal women without a uterus had substantial life expectancy gains from tamoxifen (1 to 4 months), whereas women with a uterus had such gains only if they were at a very high breast cancer risk. If tamoxifens impact on endometrial cancer persists after treatment is discontinued, women at high risk for endometrial cancer have life expectancy losses from tamoxifen unless they are at a very high risk for breast cancer. The authors conclude that tamoxifen use among postmenopausal women is associated with substantial life expectancy gains. However, this benefit is modulated in women at increased endometrial cancer risk and depends on assumptions concerning tamoxifens lingering effects on breast and endometrial cancer.
Key Words: tamoxifen estrogen antagonists breast cancer prevention Markov modeling endometrial neoplasm breast neoplasm
Medical Decision Making, Vol. 22, No. 5,
386-393 (2002) This article has been cited by other articles:
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