Table 1. Comparison of survival rates (POD7) in the non-resection and resection groups, proportion of macroscopic intraperitoneal adipose tissue coverage and IL-6 values (12 h after CLP).

	Non-resection group	Resection group	P-value
Survival rate (n=69)	40% (14/35)	5.9% (2/34)	<0.001
Proportion of macroscopic intraperitoneal adipose tissue coverage (n=69)
Survival group	100% (14/14)	100% (2/2)*	NS
Death group	33.3% (7/21)	0% (0/32)	<0.001
Median IL-6 value (pg ml−1) (n=38)	1300 (552–3000, n=19)	3000 (1224–8595, n=19)	<0.05

Abbreviations: CLP, cecal ligation and puncture; IL, interleukin; NS, not significant; POD, postoperative day. The proportion of macroscopic intraperitoneal adipose tissue coverage was confirmed when 7 days passed postoperatively in the survival group and by autopsy once death was confirmed in the death group. With regards to asterisk (*), although the proportion of macroscopic adipose tissue was less than in the non-resection group, mice in which remaining adipose tissue or adhesion with the surrounding large and small intestines were noted were considered to be positive for adipose tissue coverage.