PD-L1 in pancreatic ductal adenocarcinoma: a retrospective analysis of 373 Chinese patients using an in vitro diagnostic assay

Table 2 Univariate and multivariate analyses of prognostic factors for PFS and OS

Characteristics	p (Univariate analysis)		p (Multivariate analysis)
	PFS	OS	PFS	OS
Gender	0.572	0.579
Smoking	0.480	0.858
Smoking index	0.347	0.183
Drinking	0.780	0.208
Diabetes mellitus	0.888	0.829
Digestive presentation	0.895	0.060		0.125
WBC count	0.072	0.484	0.068
Neoadjuvant chemotherapy	0.695	0.731
Histological grading	0.074	0.082	0.125	0.089
Position	0.087	0.572	0.660
Pancreatic capsule invasion	0.382	0.797
Vascular invasion	0.350	0.270
Common bile duct invasion	0.026	0.268	0.251
Lymph node invasion	0.005	0.001	0.012	0.010
Neuroinvasion	0.809	0.218
Post-operative chemotherapy	0.478	0.338
PD-1	0.939	0.160
PD-L1	0.003	0.002	0.003	0.079

ISSN: 1746-1596