TABLE 1—
Description of Sample: American Indian Service Utilization, Psychiatric Epidemiology, Risk and Protective Factors Project
| Southwest | Northern Plains | |||||||
| Male (SM; n = 617) | Female (SF; n = 829) | Male (NM; n = 790) | Female (NF; n = 848) | |||||
| % (99% CI) | Differencea | % (99% CI) | Differencea | % (99% CI) | Differencea | % (99% CI) | Differencea | |
| Gender | 43.5 (42.6, 44.4) | SF, NM, NF | 56.5 (55.6, 57.4) | SM, NM, NF | 49.5 (48.8, 50.3) | SM, SF | 50.5 (49.7, 51.3) | SM, SF |
| Age, y | ||||||||
| 15–24 | 25.7 (23.8, 27.8) | NM | 23.6 (21.9, 25.4) | 22.1 (20.6, 23.6) | SM, NF | 26.3 (24.8, 27.8) | NM | |
| 25–34 | 26.2 (23.3, 29.2) | 26.6 (24.2, 29.2) | 29.6 (27.1, 32.2) | 29.0 (26.5, 31.6) | ||||
| 35–44 | 25.9 (22.9, 29.1) | 29.6 (27.0, 32.3) | 29.9 (27.3, 32.6) | 25.4 (23.0, 28.0) | ||||
| ≥45 | 22.2 (20.1, 24.5) | NM | 20.2 (18.4, 22.2) | 18.4 (16.9, 20.0) | SM | 19.3 (17.9, 20.8) | ||
| Education | ||||||||
| Less than 12 y | 29.2 (24.7, 34.2) | 27.4 (23.5, 31.7) | 24.8 (21.1, 28.9) | 27.9 (24.1, 32.1) | ||||
| High school or equivalent | 46.5 (41.2, 51.8) | 38.8 (34.5, 43.4) | NM | 53.6 (48.9, 58.3) | SF, NF | 41.3 (36.8, 46.0) | NM | |
| Some college | 24.3 (20.1, 29.1) | SF | 33.7 (29.6, 38.2) | SM, NM | 21.6 (17.9, 25.8) | SF, NF | 30.8 (26.6, 35.3) | NM |
| Living in poverty | 42.9 (37.5, 48.4) | NM, NF | 48.6 (43.9, 53.3) | NM, NF | 59.0 (53.9, 64.0) | SM, SF | 63.9 (59.0, 68.6) | SM, SF |
| Employment status | ||||||||
| Working for pay | 62.5 (57.4, 67.4) | NF | 58.9 (54.5, 63.2) | 62.6 (57.9, 67.1) | NF | 50.0 (45.5, 54.6) | SM, NM | |
| Student | 10.5 (7.9, 13.9) | 10.7 (8.4, 13.6) | 8.3 (6.3, 10.9) | NF | 15.0 (12.3, 18.3) | NM | ||
| Not working for payb | 27.0 (22.6, 31.9) | 30.4 (26.3, 34.7) | 29.1 (24.9, 33.7) | 34.9 (30.6, 40.0) | ||||
| Marital status | ||||||||
| Marriedc | 57.5 (52.4, 62.4) | 62.2 (57.8, 66.4) | NM | 49.0 (44.2, 53.8) | SF | 53.7 (49.1, 58.2) | ||
| Separated, widowed, divorced | 8.9 (6.5, 12.1) | NF | 10.9 (8.4, 13.9) | NF | 13.9 (10.9, 17.7) | 17.8 (14.6, 21.4) | SM, SF | |
| Never married | 33.6 (29.2, 38.4) | 27.0 (23.4, 30.9) | NM | 37.1 (32.8, 41.6) | SF, NF | 28.6 (24.9, 32.6) | NM | |
Note. CI = confidence interval. Sample sizes are unweighted.
aEntries denote significant pairwise comparisons (P < .01).
bIncludes homemaker, looking for work, unemployed, retired, permanently disabled, and other.
cIncludes living together as if married.