| Characteristics | n (%) |
| Age | |
| 18 to 20 years old | 75 (53.6) |
| 23 to 27 years old | 65 (46.4) |
| Not informed | 1 (0.7) |
| Race | |
| White | 112 (79.4) |
| Black or mixed-race | 29 (20.6) |
| Household Income | |
| Up to 2 MW* | 41 (30.1) |
| 2 to 5 MW* | 48 (35.3) |
| Over 5 MW* | 47 (34.3) |
| Not informed | 5 (3.5) |
| Gender | |
| Female | 124 (87.9) |
| Male | 16 (11.3) |
| Not informed | 1 (0.7) |
| Marital status | |
| No partner | 136 (96.5) |
| With partner | 5 (3.5) |