Table 1.
Descriptive statistics of respondents aged 15–17 years from the 1981 Time Use Longitudinal Panel Study and the 2003 through 2006 American Time Use Surveys.
| 1981 | 2003 | 2004 | 2005 | 2006 | |
|---|---|---|---|---|---|
| n | 130 | 961 | 655 | 619 | 743 |
| Age (years; mean±SD) | 16.0±0.8 | 16.0± 0.8 | 16.1± 0.8 | 16.1± 0.8 | 16.1± 0.8 |
| Proportions | |||||
| Female | 45% | 50% | 45% | 50% | 50% |
| Race | |||||
| White | 89% | 68% | 67% | 65% | 67% |
| Black | 5% | 11% | 12% | 13% | 10% |
| Asian | 0% | 3% | 3% | 4% | 4% |
| Hispanic | 5% | 14% | 14% | 15% | 17% |
| Other Race | 0% | 3% | 4% | 4% | 1% |
| Household Income ‡ | |||||
| <$25,000 | 17% | 20% | 17% | 27% | 24% |
| $25–50,000 | 33% | 25% | 27% | 26% | 28% |
| $50–75,000 | 30% | 22% | 19% | 13% | 12% |
| ≥$75,000 | 20% | 33% | 36% | 34% | 35% |
| ln Income(mean±SD) | 10.6±0.6 | 10.9±1.2 | 10.7±1.0 | 10.7±1.0 | 10.7±0.9 |
‡
Income was adjusted for inflation.