Higher Volume at Time of Breast Conserving Surgery Reduces Re-Excision in DCIS

Table 4

Volume of excision relative to the margin status.

Margins (n = 351)	Total avg volume (cm^3)
Positive (n = 178)	83.1
1-2 mm (n = 32)	79.4
3–5 mm (n = 34)	113.5
6–9 mm (n = 10)	112.9
Negative (n = 97)	130.4
F statistic = 3.48	𝑃value=.008^∗

This table compares the total average volume of each of the five categories using P values of two-sample t tests with unequal variances, after the data experienced a natural log transformation. ^∗𝑃 value represents P value of F statistic in ANOVA test.