Development and validation of a predictive model for portal-systemic venous invasion grading in borderline resectable pancreatic cancer

Table 2 Univariate and multivariable analysis of venous invasion depth in patients with borderline resectable pancreatic cancer

Factors	Univariate analysis		Multivariate analysis
	χ2 value	P value	Odds ratio value	95% confidence interval	Wald	P value
Age (60 years old)	0.530	0.467
Gender	0.755	0.385
Smoking history	0.733	0.392
Diabetes history	1.090	0.296
Leukocyte count (× 109/L)	0.010	0.922
Neutrophil count (× 109/L)	0.658	0.417
Lymphocyte count (× 109/L)	0.029	0.865
Total bilirubin (μmol/L)	0.638	0.424
Gamma-glutamyl transferase (U/L)	0.112	0.738
Carcinoembryonic antigen (ng/mL)	0.554	0.457
CA19-9 (U/mL)	23.462	0.000	3.819	1.980-7.410	14.125	0.000
Regional lymph node enlargement (imaging)	3.469	0.063
Tumor size	2.086	0.149
Tumor location (head/body/tail/uncinate)	2.591	0.107
Venous invasion length	21.534	0.000	1.012	0.496-2.064	0.001	0.973
Circumferential involvement	83.009	0.000	8.271	3.950-17.320	33.352	0.000
Luminal compromise	75.556	0.000	3.544	1.818-6.447	8.489	0.004
Tumor-vein distance	17.961	0.000	0.434	0.180-1.044	3.469	0.063