Table 4.

Univariate analysis of factors affecting the survival time of EC patients.

		EC	No EC	χ 2	P
Endotoxin level	Increase	35	1	55.000	<0.001
	Normal	5	39
Colonization ability of intestinal flora	Decrease	38	4	31.746	<0.001
	Normal	2	36
Distribution of intestinal flora	Abnormal	36	6	42.155	<0.001
	Normal	4	34
Inflammatory factors	Increase	34	10	57.836	<0.001
	Normal	6	30