Fig. 2.

Multivariate Cox regression analysis of overall survival in Chinese male breast cancer patients.

* No death occurred among patients with stage 0 or “other” endocrine therapy administration, leading to the failure of calculating the exact hazard ratio of the two variables.

Abbreviations: HR, hazard ratio; CI, confidence interval; ER, estrogen receptor; PR, progesterone receptor; A-based, anthracycline-based; T-based, taxane-based; A + T-based, anthracycline + taxane-based; SERM, selective estrogen receptor modulator; AI, aromatase inhibitor; GnRHa, gonadotropin-releasing hormone agonists.