Table 1 Characteristics of the study population (n = 917) .
| Study sample (%) | Population (%) | |
|---|---|---|
| Age (years) | ||
| 21–24 | 25.8 | 25.1 |
| 25–39 | 37.7 | 37.4 |
| 30–34 | 36.4 | 37.5 |
| Gender | ||
| Male | 52 | 51 |
| Female | 48 | 49 |
| Location | ||
| Seattle | 34.2 | — |
| Spokane | 33.0 | — |
| Portland | 32.7 | — |
| Income (US$) | ||
| <15 000 | 7.5 | 14.2 |
| 15 000–30 000 | 14.7 | 20.1 |
| 30 000–50 000 | 21.8 | 23.4 |
| 50 000–75 000 | 23.4 | 17.0 |
| >75 000 | 29.2 | 25.3 |
| Education | ||
| High school/GED or less | 11 | 28 |
| Some college/vocational/technical school | 33 | 32 |
| College graduate | 32 | 30 |
| Graduate school/professional degree | 24 | 10 |
| Phone | ||
| Landline | 95 | — |
| Cell | 5 | — |
GED, General Equvalency Diploma.