Postoperative body weight change and its influencing factors in patients with gastric cancer

Table 4 Multivariate analysis of factors influencing dynamic changes in body weight in patients with gastric cancer from 0 to 6 mo after gastrectomy

Variable	β	SE	95%CI		Wald χ2	P value
			Lower	Upper
Intercept	41.943	2.052	37.920	45.966	417.624	< 0.001b
Gender
Male	4.262	2.052	0.240	8.285	4.313	0.038a
Female	-
Religion
Yes	-6.844	2.052	-10.867	-2.821	11.119	0.001b
No	-
Marriage status
Single or divorced or widowed	-2.559	2.957	-8.354	3.237	0.749	0.387
Married	-
Payment method for medical expenses
Medical insurance	0.309	1.831	-3.279	3.897	0.029	0.866
Rural and urban health insurance	-
Preoperative BMI					1288.795	< 0.001b
≥ 25.00 kg/m2	14.685	2.425	9.932	19.438	36.669	< 0.001b
23.00-24.99 kg/m2	12.098	2.052	8.075	16.120	34.743	< 0.001b
18.50-22.99 kg/m2	5.913	1.320	3.326	8.500	20.065	< 0.001b
< 18.50 kg/m2	-
Significant psychological distress
Yes	2.490	0.624	1.266	3.714	15.905	< 0.001b
No	-

^aP < 0.05.

^bP < 0.01.

BMI: Body mass index; β: Partial regression coefficient; SE: Standard error; CI: Confidence interval.