Table 1.

Comparison of preoperative clinical variables

Variable	Group 1 n = 57	Group 2 n = 43	P value
Mean tumor size(in cm)
Pre NACT	5.3 (+/− 1.2)	4.9(+/− 1.3)	0.47*
Post NACT	4.4 (+/− 1.6)	2.3(+/− 1.1)	0.04*
Tumor location
Upper outer	33	34	0.04**
Upper inner	7	5
Central	8	0
Lower outer	5	2
Lower inner	4	2

*chi-square test; p < 0.05 significant

**ANOVA one tailed; p < 0.05 significant