Table 7.

Multivariate Analysis of Progression-Free Survival

	p Value	HR	95.0% CI for HR
			Lower	Upper
LVI	0.010	7.776	1.645	36.753
Type of surgery	0.794	1.225	0.267	5.616
pCR	0.247	0.221	0.017	2.842
Tumor size	0.599	1.009	0.975	1.045
Smoking	0.140	2.513	0.740	8.539

LVI, lymph vascular invasion; pCR, pathological complete response; HR, hazard ratio; CI, confidence interval.