Table 2.

Survival analysis for 1406 T1-2N1M0 breast cancer underwent mastectomy

	n	LRR	P-value	DM	P-value	LRFS	P-value	DMFS	P-value	DFS	P-value	BCSS	P-value
			0.008		0.791		0.012		0.591		0.325		0.084
No- RT	1009	8.9		14.8		85.3		84.5		82.5		91.3
RT	397	4.2		14.8		89.0		85.0		84.2		92.8

Note: P-values were calculated using the unadjusted log-rank test.

Abbreviations: RT, radiotherapy; LRR, locoregional relapse; DM, distant metastasis; LRFS, locoregional relapse-free survival; DMFS, distant metastasis-free survival; DFS, disease-free survival; BCSS, breast cancer-specific survival.