Table 1.

Subject numbers and characteristics of pancreatic cancer cases and controls

	Cases No. (%)	Controls No. (%)
No. of subjects
Stage 1	1,582	5,203
Stage 2	3,525	3,642
Replication	2,576	5,552
Full study population	7,683	14,397
Geographic region
United States	4,387 (57.1)	7,962 (55.3)
Central/Northern Europe	2,264 (29.5)	3,853 (26.8)
Southern Europe	1,032 (13.4)	2,582 (17.9)
Sex
Male	4,107 (53.5)	8,841 (61.4)
Female	3,576 (46.5)	5,556 (38.6)
Age, years
≤ 60	1,972 (25.7)	4,577 (31.8)
61 – 70	2,688 (35.0)	5,906 (41.0)
> 70	3,023 (39.3)	3,914 (27.2)
Smoking status*
Current / past	2,634 (51.6)	4,541 (51.3)
Never	1,642 (32.2)	3,186 (36.0)
Unknown	831 (16.3)	1,118 (12.6)

^*Smoking status was available for subjects in Stages 1 and 2.