Table 1. Proliferation index (PI) in Group I and Group 2.

PI	Group 1	Group 2	p value
Postoperative day 2	7.6% (2.9–12.3)*	11.2% (2.5–20.7)	0.04
Postoperative day 7	7.1% (2.4–20.7)	9.6% (2.9–22.3)	NS

* values in parentheses are range

NS: not significant