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Kaplan-Meier survival analysis of the effect of marital status on cancer-specific survival (CSS) and overall survival (OS) in 3612 male patients with breast cancer by estrogen receptor (ER) and progesterone receptor (PR) status. (A) CSS ER−/PR+: χ2=0.016, P=0.899; (B) OS ER−/PR+: χ2=0.968, P=0.325; (C) CSS ER+/PR−: χ2=0.030, P=0.862; (D) OS ER+/PR−: χ2=1.578, P=0.209; (E) CSS ER+/PR+: χ2=9.557, P=0.002; (F) OS ER+/PR+: χ2=16.475, P<0.001.
