Fig. 4

Kaplan-Meier disease-free (a, c, e, g) and overall survival (b, d, f, h) curves in ER-negative and PR-negative cases or triple-negative cases without any adjuvant therapy stratified by menopausal status at diagnosis. Bold lines, Bcl-2-positive; thin lines, Bcl-2-negative. Postmenopausal patients with ER-negative and PR-negative tumors (a, b), postmenopausal patients with triple-negative tumors (c, d), premenopausal patients with ER-negative and PR-negative tumors (e, f), and premenopausal patients with triple-negative tumors (g, h). The P-value was determined by the log-rank test. *Significant, P <0.05