Survival of women ages 40‐49 years with breast carcinoma according to method of detection

The value of mammographic screening in reducing breast carcinoma mortality among women younger than 50 years continues to be controversial. Previous randomized clinical trials have not been definitive because of inadequate sample sizes, prolonged screening intervals, questionable randomization, and/or cross‐contamination between intervention groups. This study uses a historical prospective cohort design to examine differences in prognostic factors at the time of breast carcinoma diagnosis and differences in overall survival among patients ages 40‐49 years, according to the method of breast carcinoma detection.

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