Table 1.
Descriptive statistics for the analytic sample (n = 14, 545).
| Female (n = 7,728) |
Male (n = 6,817) |
|
|---|---|---|
| M (SD) /% | M (SD) /% | |
| Maturational Timing | ||
| Early Timing | 9.4% | 15.8% |
| On-Time | 76.1% | 68.4% |
| Late Timing | 14.4% | 15.8% |
| Peer-Relative Timing | ||
| Younger Than Most | 8.5% | 11.3% |
| On-Time | 77.7% | 74.8% |
| Older Than Most | 13.8% | 13.8% |
| Adolescent Outcomes (Wave I) | ||
| Psychosocial Well-Being | ||
| Depressive Symptoms | 7.01 (4.92) | 5.27 (3.89) |
| Antisocial Behavior | 2.75 (3.40) | 3.34 (4.16) |
| Health Behaviors | ||
| Number of Sex Partners | 1.04 (3.13) | 1.68 (5.10) |
| Drug Use | 0.61 (0.98) | 0.68 (1.04) |
| Physical Activity | 3.25 (2.00) | 4.13 (2.22) |
| Screen Time | 19.90 (19.20) | 25.48 (23.39) |
| Sleep Hours | 7.78 (1.42) | 7.87 (1.41) |
| Physical Health | ||
| Self-Reported Good Health | 3.80 (0.91) | 3.95 (0.90) |
| Body Mass Index | 22.31 (4.42) | 22.73 (4.67) |
| Young Adult Outcomes (Wave IV) | ||
| Psychosocial Well-Being | ||
| Depressive Symptoms | 6.51 (4.95) | 5.70 (4.43) |
| Antisocial Behavior | 0.19 (0.86) | 0.43 1.29) |
| Health Behaviors | ||
| Number of Sex Partners | 8.61 (9.56) | 12.13 (13.52) |
| Drug Use | 0.81 (1.03) | 1.22 (1.15) |
| Physical Activity | 3.23 (2.75) | 4.05 (3.32) |
| Screen Time | 19.77 (18.54) | 24.90 (23.32) |
| Sleep Hours | 7.99 (1.26) | 7.58 (1.36) |
| Physical Health | ||
| Self-Reported Good Health | 3.63 (0.92) | 3.69 (0.92) |
| Body Mass Index | 29.16 (8.17) | 29.01 (6.86) |
| Baseline Covariates (Wave I) | ||
| Age (in Wave I) | 15.92 (1.80) | 16.08 (1.84) |
| Parent Education | 12.86 (2.61) | 12.96 (2.60) |
| Race/Ethnicity | ||
| White | 67.7% | 67.4% |
| Black | 16.0% | 15.6% |
| Hispanic | 11.8% | 11.8% |
| Asian | 2.7% | 3.30% |
| Other | 1.4% | 1.8% |
| Receipt of Public Aid | 7.9% | 6.9% |
| Parental Marital Status | ||
| Single, Never Married | 5.4% | 4.6% |
| Married | 71.9% | 72.4% |
| Windowed | 3.1% | 3.0% |
| Divorced | 14.6% | 15.8% |
| Separated | 5.0% | 4.2% |
| Father Absence | ||
| Never Absent | 63.4% | 65.5% |
| Father Left (6–13 years) | 11.2% | 11.5% |
| Father Left (0–15 years) | 11.3% | 10.6% |
| Always Absent | 14.0% | 12.4% |
| Urbanicity | ||
| Urban | 26.1% | 26.2% |
| Suburban | 58.3% | 58.4% |
| Rural | 15.5% | 15.4% |
Notes. All descriptive statistics are drawn from the final imputed dataset and weighted using Add Health survey weights.