Men with breast cancer have better disease-specific survival than women |
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Authors: | El-Tamer Mahmoud B Komenaka Ian K Troxel Andrea Li Huiling Joseph Kathie-Ann Ditkoff Beth-Ann Schnabel Freya R Kinne David W |
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Affiliation: | Section of Breast Surgery, Columbia-Presbyterian Medical Center, New York, NY 10032, USA. me180@columbia.edu |
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Abstract: | HYPOTHESIS: Male breast cancer patients have better disease-specific survival than carefully matched female breast cancer patients. DESIGN: Retrospective study. SETTING: University hospital. PATIENTS AND METHODS: Each man in the breast cancer database at Columbia-Presbyterian Medical Center (New York, NY) between the years 1980 and 1998 was matched with a woman. Matching was done based on age and date of diagnosis, stage, and primary histologic findings. MAIN OUTCOME MEASURES: The overall survivals and disease-specific survivals of the male breast cancer group and female breast cancer group were compared. RESULTS: Fifty-three male patients were matched with an equal number of female breast cancer patients. The Kaplan-Meier curves demonstrated that there was no significant difference in overall survival. The 5- and 10-year survivals for women were 0.77 and 0.51, and for men 0.77 and 0.56. When the Kaplan-Meier curves for breast cancer-specific survival were compared, however, there was a significant difference in the 5- and 10-year survivals (P = .05, log-rank test). For women, the 5- and 10-year disease-specific survival was 0.81 and 0.7, respectively, while for men it was 0.9 and 0.9, respectively. In a Cox regression analysis for time to death from breast cancer, stage was the only predictor of death that approached significance (P = .06). CONCLUSIONS: While the overall survivals were equivalent, male breast cancer patients had significantly better disease-specific survivals compared with their female counterparts. Male patients were 4 times more likely to die of other causes than their breast cancer. |
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