Table I. Demographic and pre-operative data.

Variable	n	Median survival (mo)	P
Race			0.28
White	43	26.3
Black	12	17.8
Oriental	7	32.5
Age (years)			0.55
< 60	36	24.5
> 60	26	29.2
Sex			0.008
Male	26	18.2
Female	36	33.0
Weight loss			0.46
No	13	28.9
Yes	47	26.6
Upper GI obstruction symptoms			0.19
No	46	28.2
Yes	15	19.9
Diabetes			0.67
No	36	25.5
Yes	24	26.3
Jaundice (TB > 3 mg/dl)			0.56
No	21	30.5
Yes	39	24.2
CEA (>5 ug/ml)			0.25
No	20	24.8
Yes	13	41.5
CA 19–9 (>200 ng/ml)			0.09
No	22	33.2
Yes	19	19.8