TABLE 1.
Characteristics of Patients and Controls
| Patients, n = 808 |
Controls, n = 808 |
||||
|---|---|---|---|---|---|
| Characteristics | No. | % | No. | % | P |
| Sex | .1 | ||||
| Men | 449 | 55.6 | 478 | 59.2 | |
| Women | 359 | 44.4 | 330 | 40.8 | |
| Race | .1 | ||||
| White | 698 | 86.4 | 721 | 89.2 | |
| Nonwhite | 110 | 13.6 | 87 | 10.8 | |
| Education | .002 | ||||
| ≤High school degree | 307 | 38 | 247 | 30.6 | |
| >High school degree | 501 | 62 | 561 | 69.4 | |
| Age at recruitment, y | .02 | ||||
| ≤40 | 15 | 1.9 | 33 | 4.1 | |
| 41-50 | 96 | 11.9 | 120 | 14.9 | |
| 51-60 | 236 | 29.2 | 243 | 30.1 | |
| 61-70 | 289 | 35.8 | 261 | 32.3 | |
| >70 | 172 | 21.3 | 151 | 18.7 | |
| Marital status | .02 | ||||
| Married | 627 | 77.6 | 716 | 88.6 | |
| Never married | 23 | 2.8 | 16 | 2.0 | |
| Widowed | 88 | 10.9 | 26 | 3.2 | |
| Divorced/separated | 70 | 8.7 | 50 | 6.2 | |
| Residency by region* | <.001 | ||||
| Northeast | 36 | 4.5 | 31 | 3.8 | |
| Midwest | 104 | 12.9 | 79 | 9.8 | |
| South | 596 | 73.8 | 664 | 82.2 | |
| West | 72 | 8.9 | 34 | 4.2 | |
| History of alcohol drinking | .7 | ||||
| Never | 371 | 45.9 | 364 | 45.0 | |
| Ever | 437 | 54.1 | 444 | 55.0 | |
| History of diabetes mellitus | <.001 | ||||
| Never | 614 | 76.0 | 729 | 90.2 | |
| Ever | 194 | 24.0 | 79 | 9.8 | |
| Family history of pancreatic cancer | <.001 | ||||
| Never | 733 | 91.5 | 775 | 95.9 | |
| Ever† | 69 | 8.5 | 30 | 3.7 | |
*
United States Census Bureau.
†
Data on family history of pancreatic cancer was missing for 6 patients and 3 controls.