Dynamic ultrasound monitoring of intraperitoneal effusion for predicting complications after laparoscopic gastrectomy

Table 10 Analysis results of logistic regression analysis

Independent variable	β	SE	Wald χ2	P value	OR (95%CI)
Operation time (per 10 minutes)	0.205	0.12	2.902	0.083	1.23 (0.97-1.55)
Bleeding volume (per 100 mL)	0.537	0.213	6.351	0.012	1.71 (1.13-2.59)
Day 3 CRP (per 10 mg/L)	0.35	0.104	11.34	0.001	1.42 (1.15-1.75)
Day 3 PCT (per 0.1 ng/mL)	0.444	0.142	9.813	0.002	1.56 (1.18-2.07)

P < 0.05 indicated significant difference. The outcome was effusion severity (mild < moderate < massive). The Brant test confirmed the proportional odds assumption. β: Coefficient estimate; CI: Confidence interval; CRP: C-reactive protein; PCT: Procalcitonin.