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

Table 1 Univariate analysis results between patients with and without postoperative gastrointestinal dysfunction in gastrointestinal tumor patients

Variable	Non-dysfunction group (n = 124)	Dysfunction group (n = 52)	t value	P value
Age (years)	58.2 ± 8.5	65.3 ± 7.8	5.231	< 0.001
Gender (male/female)	72/52	38/14	4.325	0.038
BMI (kg/m2)	23.5 ± 2.1	21.8 ± 2.3	4.123	0.043
Tumor location (stomach/intestine)	68/56	32/20	0.234	0.629
Tumor stage (I-II/III-IV)	86/38	24/28	5.678	0.017
Surgical approach (open/laparoscopic)	45/79	22/30	1.234	0.267
Operation time (minute)	180.5 ± 30.2	210.3 ± 35.6	4.876	< 0.001
Pre-operative hemoglobin (g/L)	125.3 ± 15.6	108.2 ± 12.3	6.345	< 0.001
Pre-operative albumin (g/L)	38.5 ± 3.2	34.2 ± 3.5	7.234	< 0.001

Data are presented as mean ± SD for continuous variables and n for categorical variables. Intergroup comparisons were performed using the t-test (for continuous variables) or χ² test (for categorical variables). P < 0.05 was considered statistically significant. BMI: Body mass index.