Table 3.

Multivariate Analysis for Overall Survival in Pancreatic Ductal Adenocarcinoma Tissue Microarray

Variable	Comparison	Hazard Ratioa (95% CI)	P
HOXB7 expression	High vs. low	1.50 (1.01–2.22)	.04
Sex	Male vs female	0.72 (0.50–1.04)	.08
Histologic grade	Poor vs well + moderate	1.82 (1.24–2.66)	.002
pT status	pT2 + pT3 vs pT1	0.60 (0.37–0.98)	.04
AJCC stage	II vs I	1.61 (1.08–2.40)	.02

Abbreviations: AJCC, American Joint Commission on Cancer; CI, confidence interval.

^aHR > 1 indicates a greater risk of death for the first level of the variable listed. All covariates in Table 2 were addressed, with only those variables retained in the model after backward selection shown here.