Prognostic nutritional index predicts postoperative complications and long-term outcomes of gastric cancer

Table 2 Univariate and multivariate logistic regression analyses of postoperative complications n (%)

Variable	No. of complications	Univariate analysis		Multivariate analysis
		χ2	P value	OR (95%CI)	P value
Age ≥ 65 yr	24 (28.9)	2.151	0.142
Gender (male)	52 (62.7)	0.948	0.330
Tumor location (Upper 1/3)	32 (38.6)	4.189	0.242
BMI < 18.5 kg/m2	15 (18.1)	0.038	0.846
PNI < 46	44 (53.0)	12.391	< 0.001	2.223 (1.344-3.676)	0.002
Bleeding > 200 mL	60 (72.3)	5.532	0.019	1.762 (1.023-3.037)	0.041
Tumor size ≥ 5 cm	60 (72.3)	4.162	0.041	1.147 (0.646-2.037)	0.640
Borrmann type III/IV	57 (68.7)	1.357	0.244
Histological type (undifferentiated)	63 (75.9)	0.295	0.587
Extranodal metastasis (positive)	14 (16.9)	0.114	0.735
Serosal invasion (yes)	76 (91.6)	8.471	0.004	2.792 (1.218-6.404)	0.015
Lymph node metastasis (pN3)	40 (48.2)	14.282	0.003	1.111 (0.889-1.390)	0.354
TNM stage (III)	60 (72.3)	4.432	0.109

PNI: Prognostic nutritional index; BMI: Body mass index.