Table 3.

Comparison of post-operative histological variables

Variable	Group 1	Group 2	P value
Mean specimen volume (in cc)	187.54(±43.55)	125.19(±48.65)	0.000*
			<0.01
Mean margin ( in cm)	1.04(±0.31)	0.69(±0.32)	0.000*
			<0.01
Mean closest margin (in cm)	0.86(±0.21)	0.49(±0.36)	0.000*
			<0.01
Lateral margin status
Free	54(95 %)	33(76 %)	0.03**
Close	2 (3 %)	7 (16 %)
Positive	1 (2 %)	3 (8 %)
Further surgery
Re-excision	0	1 (2 %)	0.12**
Mastectomy	1(2 %)	2(5 %)

*chi-square test; p < 0.05 significant

**ANOVA one tailed; p < 0.05 significant