Table 4.

Mean Age Difference at Pancreatic Cancer Diagnosis Stratified by Lifetime Smoking and Drinking Habits^a

CIRF
smoking	drinking	estimated mean difference	standard error	95% CI		P valueb
	current	−10.2	0.29	−10.8 to	−9.7	<.0001
	past	−10.1	0.45	−11.0 to	−9.2	<.0001
current	never	−8.0	0.29	−8.5 to	−7.4	<.0001
	current	−3.0	0.29	−3.6 to	−2.4	<.0001
	past	−3.4	0.37	−4.1 to	−2.6	<.0001
past	never	−1.5	0.26	−2.0 to	−1.0	<.0001
	current	−3.6	0.34	−4.3 to	−2.9	<.0001
	past	−3.5	0.66	−4.8 to	−2.2	<.0001
never	never†	0	N/A	N/A	N/A	N/A
UMPCR
smoking	drinking	estimated mean difference	standard error	95% CI		P valueb
	current	−8.6	1.37	−11.3 to	−5.9	<.0001
	past	−9.8	1.88	−13.4 to	−6.1	<.0001
current	never	−8.2	1.36	−10.8 to	−5.5	<.0001
	current	−2.2	1.26	−4.7 to	0.3	0.08
	past	−2.1	1.96	−5.9 to	−1.8	0.29
past	never	−0.7	1.32	−3.3 to	−1.9	0.61
	current	−6.4	1.17	−8.8 to	−4.1	<.0001
	past	−4.0	3.46	−10.8 to	2.8	0.25
never	never†	0	N/A	N/A	N/A	N/A

Abbreviations: CI, confidence interval; N/A, not applicable

^†reference group is never smokers/never drinkers

^aAll analyses are adjusted for gender

^bP value is probability > chi square