Construction of a risk prediction model for postoperative gastrointestinal dysfunction and prevention in patients with gastrointestinal tumors

Table 2 Multivariate Logistic regression analysis of independent risk factors for postoperative gastrointestinal dysfunction in patients with gastrointestinal tumors

Variable	B	SE	Wald	df	P value	OR	95%CI
Age (year)	0.085	0.032	7.123	1	0.008	1.089	1.023-1.160
Gender (male vs female)	0.852	0.345	6.123	1	0.013	2.346	1.182-4.658
BMI (kg/m2)	-0.234	0.102	5.234	1	0.022	0.792	0.645-0.978
Tumor stage (III-IV vs I-II)	1.234	0.456	7.456	1	0.006	3.432	1.412-8.321
Operation time (minute)	0.012	0.004	8.234	1	0.004	1.012	1.004-1.020
Pre-operative hemoglobin (g/L)	-0.023	0.008	8.123	1	0.004	0.977	0.962-0.993
Pre-operative albumin (g/L)	-0.156	0.052	8.987	1	0.003	0.856	0.765-0.954

Reference categories for categorical variables: Gender (female), tumor stage (I-II). P < 0.05 was considered statistically significant. OR: Odds ratio; 95%CI: 95% confidence interval; BMI: Body mass index.