3.

Risk factors of IFCC positive using nonconditional logistic regression analysis

Factors	OR	95% CI	P
IFCC, intraperitoneal free cancer cell; OR, odds ratio; 95% CI, 95% confidence interval.
Lauren type
Diffused	11.95	2.55−56.12	0.002
Mixed	2.87	0.79−10.40	0.109
Vascular invasion	3.16	0.69−18.39	0.012
T stage
T1b	13.20	0.23−750.79	0.211
T2	1.98	0.05−74.01	0.712
T3	5.31	0.12−229.64	0.385
T4a	4.99	0.16−154.14	0.358
T4b	1.70	0.06−45.36	0.753
N stage
N1	0.59	0.05−7.03	0.674
N2	0.72	0.07−7.34	0.782
N3a	2.39	0.25−23.39	0.454
N3b	1.02	0.13−7.99	0.979