Table 1.
Characteristics of cases and controls in a population-based case-control study of pancreatic cancer in Minnesota, 1994-1998a
| Characteristic | Cases (n=186) | Controls (n=554) | P Value |
|---|---|---|---|
| Age (years) | 65.8 (10.9) | 66.5 (12.0) | 0.47 |
| Sex | |||
| Male | 109 (59.2%) | 314 (56.7%) | |
| Female | 75 (40.8%) | 240 (43.3%) | 0.54 |
| Race | |||
| Caucasian | 173 (94.0%) | 544 (98.2%) | |
| African-American | 7 (3.8%) | 4 (0.7%) | |
| Other | 4 (2.2%) | 6 (1.1%) | 0.006 |
| Education | |||
| Some high school or less | 31 (16.8%) | 64 (11.6%) | |
| High school graduate | 69 (37.5%) | 146 (26.3%) | |
| Some college or more | 84 (45.7%) | 344 (62.1%) | 0.0005 |
| Cigarette smoking | |||
| Never smoker | 67 (37.9%) | 263 (47.5%) | |
| Former smoker | 83 (46.9%) | 233 (42.0%) | |
| Current smoker | 27 (15.2%) | 58 (10.5%) | 0.047 |
| Alcohol intake (serving/week) | 3.4 (6.8) | 4.6 (8.4) | 0.057 |
| Physical activity (hrs/week) | |||
| Light | 23.0 (16.6) | 27.1 (16.4) | 0.007 |
| Moderate | 14.9 (12.7) | 17.6 (12.6) | 0.019 |
| Heavy | 5.0 (11.1) | 3.7 (5.3) | 0.16 |
| Total | 42.9 (27.3) | 48.5 (25.4) | 0.020 |
| Diabetes mellitus | |||
| Yes | 44 (27.0%) | 39 (7.0%) | |
| No | 119 (73.0%) | 515 (93.0%) | <0.0001 |
Data shown are mean (SD) or n (%).
a
Data for some variables were missing for some cases.