Table 1.
Participant demographics.
| Baseline Characteristics | Healthy Controls (n = 42) |
Stage 0 (n = 41) |
Stage 1a (n = 52) |
Stage 1b (n = 108) |
P valuea |
|---|---|---|---|---|---|
| Age | 19.1 (3.8) | 18.4 (4.3) | 18.4 (3.5) | 16.8 (3.3) | 0.002 |
| Years of education | 12.4 (3.3) | 11.5 (3.4) | 11.4 (2.6) | 10.3 (2.6) | <0.001 |
| Sex | |||||
| Male | 22 (52.4%) | 18 (43.9%) | 22 (42.3%) | 47 (43.5%) | 0.755 |
| Female | 20 (47.6%) | 23 (56.1%) | 30 (57.7%) | 61 (56.5%) | |
| Race | |||||
| White (European) | 21 (50.0%) | 29 (70.8%) | 33 (63.5%) | 68 (63.0%) | 0.159 |
| Interracial | 4 (9.5%) | 6 (14.6%) | 9 (17.3%) | 14 (13.0%) | |
| Other | 17 (40.5%) | 6 (14.6%) | 10 (19.2%) | 26 (24.0%) | |
| Marital status | |||||
| Single | 42 (100.0%) | 37 (90.2%) | 52 (100.0%) | 104 (96.3%) | 0.035 |
| Other | 0 | 5 (9.8%) | 0 | 4 (3.7%) | |
| Current living arrangement | |||||
| Living with family | 29 (69.1%) | 27 (65.9%) | 40 (76.9%) | 95 (88.0%) | 0.008 |
| Other | 13 (30.9%) | 15 (34.1%) | 12 (23.1%) | 13 (22.0%) | |
| Currently employment status | |||||
| Fulltime/part time | 20 (47.6%) | 16 (39.0%) | 30 (57.7%) | 30 (27.8%) | 0.002 |
| Unemployed | 22 (52.4%) | 25 (61.0%) | 22 (42.3%) | 78 (72.2%) | |
| Current student | |||||
| No | 9 (21.4%) | 5 (12.2%) | 14 (26.9%) | 14 (13.0%) | 0.110 |
| Yes | 33 (78.6%) | 36 (87.8%) | 38 (73.1%) | 94 (87.0%) |
Values presented as: means (SD) or n (%).
aANOVA for continuous and χ2 test for categorical baseline characteristics.