Table 1.
Demographic characteristics of cohort (n = 32,254) by community and occupational groups [n (%) or mean ± SD].
| Characteristic | Entire cohort (n = 32,254) | Community group (n = 28,541) | Occupational group (n = 3,713) |
|---|---|---|---|
| Sex | |||
| Male | 14,894 (46.2) | 11,939 (41.8) | 2,955 (79.6) |
| Female | 17,360 (53.8) | 16,602 (58.2) | 758 (20.4) |
| Race/ethnicitya | |||
| White, non-Hispanic | 31,144 (97.4) | 27,860 (97.6) | 3,284 (96.1) |
| Other | 815 (2.6) | 681 (2.4) | 134 (3.9) |
| Educationb | |||
| Less than high school | 3,063 (9.5) | 3,026 (10.6) | 37 (1.0) |
| High school or certificate of equivalency (GED) | 12,971 (40.2) | 11,706 (41.0) | 1,265 (34.1) |
| Some college | 10,522 (32.6) | 9,441 (33.1) | 1,081 (29.1) |
| Bachelor or higher | 5,694 (17.7) | 4,366 (15.3) | 1,328 (35.8) |
| Mean age at final interview (years) | 53.0 ± 15.6 | 52.2 ± 15.6 | 59.3 ± 14.1 |
| Mean year of birth | 1957 ± 15.6 | 1958 ± 15.6 | 1951 ± 14.1 |
| Type of participant | |||
| Community only | 28,541 (88.5) | 28,541 (100.0) | — |
| Worker only | 1,823 (5.7) | — | 1,823 (49.1) |
| Community and worker | 1,890 (5.9) | — | 1,890 (50.9) |
| GED, General Education Development test. aRace/ethnicity information was missing for 295 participants (all from the occupational group). bEducation information was missing for 4 participants (2 from the community group and 2 from the occupational group). | |||