Abdominoperineal Resection for Rectal Cancer: Is the Pelvic Drain Externalization Site an Independent Risk Factor for Perineal Wound Healing?

Table 3

Staging and differentiation.

Group	PW (𝑛=42)	SW (𝑛=33)	𝑃 value	Significance level
Staging (Duke’s)
In situ	2	—	0.310	NS
A	3	3	0.311	NS
BI	6	5	0.254	NS
BII	14	13	0.165	NS
CI	3	3	0.311	NS
CII	11	7	0.191	NS
D	3	2	0.351	NS
Differentiation				NS
Well	10	4	0.107	NS
Moderate	28	23	0.189	NS
Poor	4	6	0.149	NS

NS: non-significant, 𝑃 value >0.05.