Document Classification

Section Type: RESULTS

Text: In separate Cox models, controlling for relevant prognostic and predictive factors, disease-free (DFS) and overall survival (OS) hazard ratios (HRs) were consistent for women age 40 versus > 40 years, regardless of treatment assignment (observation group : DFS HR age 40 v > 40 years, 1. 18 ; 95 % CI, 0. 90 to 1. 54 ; OS HR age 40 v > 40 years, 1. 01 ; 95 % CI, 0. 60 to 1. 69 ; trastuzumab group : DFS HR age 40 v > 40 years, 1. 11 ; 95 % CI, 0. 81 to 1. 51 ; OS HR age 40 v > 40 years, 1. 18 ; 95 % CI, 0. 66 to 2. 09).