Table 2. Moderate- and High-Risk Behavior Change From Baseline to 3 Months in Intervention and Control Groups.
| Health Risk Behavior | Youths, No. (%) | P Valuea | |||
|---|---|---|---|---|---|
| Control Group | Intervention Group | ||||
| At Baseline (n = 153) | At 3 mo (n = 151) | At Baseline (n = 147) | At 3 mo (n = 141) | ||
| Low fruit and vegetable intake | 125 (81.7) | 127 (84.1) | 114 (77.6) | 106 (75.2) | .41 |
| High screen time | 67 (43.8) | 55 (36.4) | 69 (46.9) | 62 (44.0) | .37 |
| Low sleep time | 56 (36.6) | 55 (36.4) | 60 (40.8) | 53 (37.6) | .68 |
| Inconsistent helmet use | 58 (37.9) | 38 (25.2) | 58 (39.5) | 26 (18.4) | .01b |
| Low physical activity | 40 (26.1) | 44 (29.1) | 42 (28.6) | 31 (22.0) | .13 |
| High sugary beverage intake | 29 (19.0) | 35 (23.2) | 21 (14.3) | 24 (17.0) | .93 |
| Inconsistent seatbelt use | 18 (11.8) | 14 (9.3) | 22 (15.0) | 7 (5.0) | .006b |
| Marijuana or other drug use | 14 (9.2) | 11 (7.3) | 16 (10.9) | 10 (7.1) | .60 |
| Alcohol use | 6 (3.9) | 9 (6.0) | 12 (8.2) | 9 (6.4) | NAc |
| Depression | 5 (3.3) | 11 (7.3) | 9 (6.1) | 12 (8.5) | NAc |
| Driving under influence | 4 (2.6) | 4 (2.6) | 3 (2.0) | 2 (1.4) | NAc |
| Unsafe sex | 1 (0.7) | 3 (2.0) | 3 (2.0) | 2 (1.4) | NAc |
| Tobacco use | 2 (1.3) | 3 (2.0) | 4 (2.7) | 2 (1.4) | NAc |
Abbreviation: NA, not applicable.
a
Statistical significance was set at P < .01.
b
Based on likelihood ratio test comparing mixed-effects logistic regression models with or without period-by-group interaction. Both models controlled for random effects corresponding to within individual clustering.
c
Statistical comparison testing not conducted for variables with fewer than 10 participants at baseline in both the control and case samples.