Table I. Characteristics of the included participants (N=1,677).
| Variable | n | % |
|---|---|---|
| Age, years | ||
| 18 – 24 | 578 | 34.5 |
| 25 – 34 | 693 | 41.3 |
| 35 – 44 | 282 | 16.8 |
| 45 and above | 79 | 4.7 |
| Missing | 45 | 2.7 |
| Race/ethnicity | ||
| Asian | 299 | 17.8 |
| Black | 277 | 16.5 |
| Latino | 358 | 21.4 |
| White | 410 | 24.5 |
| Other | 216 | 12.9 |
| Missing | 117 | 7.0 |
| Residential area | ||
| Rural | 81 | 4.8 |
| Small town | 219 | 13.1 |
| Medium – sized city | 437 | 26.1 |
| Suburb | 395 | 23.6 |
| Large city | 531 | 31.7 |
| Missing | 14 | 0.8 |
| Education | ||
| Through high school | 221 | 13.2 |
| Some college | 508 | 30.3 |
| College | 517 | 30.8 |
| Post graduate | 430 | 25.6 |
| Missing | 1 | 0.1 |
| Gender of sexual partners, last three years |
||
| Only men | 1,374 | 81.9 |
| Both women and men | 300 | 17.9 |
| Missing | 3 | 0.2 |