Figure 3.

Hazard ratios among breast cancer patients according to stage and risk score. Risk score was assigned according to a point system: 1 point if estrogen receptor negative, 1 point if human epidermal growth factor receptor 2 negative, and 1 point for grade 3. Reference group was stage I risk 0, bars represent 95% confidence intervals. Adjusted for age, radiation therapy (yes/no), chemotherapy (yes/no), and surgery (breast conservation/mastectomy/none).

Abbreviations: BCSS, breast cancer specific survival; CI, confidence interval; HR, hazard ratio; OS, overall survival.