Correlation between laparoscopic radical resection and tumor markers in peritoneal irrigation fluid

Table 7 Cytokeratin-19 cancer leak ratios for two surgeries in different T stages, n (%)

T grade	Total (n = 118)	Membrane anatomy group (n = 63)	D2 group (n = 60)	Statistic	P value
T grade				χ2 = 4.19	0.041
CK-19 -	98 (83.05)	54 (90.00)	44 (75.86)
CK-19 +	20 (16.95)	6 (10.00)	14 (24.14)
T1
CK-19 -	21 (100.00)	12 (100.00)	9 (100.00)
CK-19 +	0 (0.00)	0 (0.00)	0 (0.00)
T2					1.000
CK-19 -	12 (92.31)	6 (100.00)	6 (85.71)
CK-19 +	1 (7.69)	0 (0.00)	1 (14.29)
T3				χ2 = 0.27	0.605
CK-19 -	40 (83.33)	22 (88.00)	18 (78.26)
CK-19 +	8 (16.67)	3 (12.00)	5 (21.74)
T4					0.156
CK-19 -	25 (69.44)	14 (82.35)	11 (57.89)
CK-19 +	11 (30.56)	3 (17.65)	8 (42.11)

CK-19: Cytokeratin-19.