From: Multilevel predictors of adolescent physical activity: a longitudinal analysis
 | All (n = 578) | Boys (n = 287) | Girls (n = 291) | P-value | ||||
---|---|---|---|---|---|---|---|---|
 | Mean | SD | Range | Mean | SD | Mean | SD |  |
Percent White | 86.9 | 33.8 | Â | 88.5 | 32.0 | 85.2 | 35.5 | 0.20 |
Household education, (col grad/prof training) | 78.0 | 41.4 | Â | 80.5 | 39.7 | 75.6 | 43.0 | 0.18 |
Percent free/reduced lunch | 10.6 | 30.8 | Â | 9.8 | 29.7 | 11.3 | 31.8 | 0.61 |
Age | 14.6 | 1.8 | Â | 14.5 | 1.8 | 14.6 | 1.8 | 0.91 |
Pubertal Status | 2.9 | 0.8 | Â | 2.5 | 0.7 | 3.2 | 0.7 | < 0.01 |
%Body fat | 20.9 | 9.9 | 3.6-60.1 | 16.0 | 8.9 | 25.9 | 8.3 | < 0.01 |
% Participate in one or more team now and last year | 64.9 | 47.8 | 0.0-100.0 | 65.2 | 47.7 | 64.6 | 47.9 | 0.89 |
Daily minutes of screen time | 312.4 | 217.5 | 8.6-1311.4 | 345.5 | 231.9 | 279.8 | 197.4 | < 0.01 |
Daily minutes of moderate to vigorous physical activity | 30.9 | 17.1 | 2.2-145.4 | 35.1 | 18.9 | 26.7 | 14.1 | < 0.01 |
PA Self Efficacy | 30.8 | 4.8 | 11.0-40.0 | 31.3 | 4.4 | 30.2 | 5.1 | 0.01 |
PA Enjoyment | 29.8 | 5.3 | 7.0-35.0 | 30.6 | 4.9 | 29.0 | 5.5 | < 0.01 |
PA Barriers | 22.6 | 6.7 | 12.0-49.0 | 21.1 | 5.9 | 24.1 | 7.1 | < 0.01 |
PA Parental Support | 11.4 | 3.7 | 4.0-20.0 | 11.5 | 3.5 | 11.3 | 3.8 | 0.43 |
PA Peer Support | 11.5 | 4.0 | 4.0-20.0 | 11.7 | 3.9 | 11.3 | 4.1 | 0.18 |
PA equipment Availability & Access Summary Score | 247.4 | 141.2 | 0.0-1012.0 | 272.0 | 151.6 | 223.0 | 125.8 | < 0.01 |
Perceived neighborhood safety | 8.6 | 2.4 | 5.0-17.0 | 8.4 | 2.4 | 8.8 | 2.3 | 0.07 |
Perceived walking infrastructure quality | 13.7 | 2.9 | 5.0-20.0 | 13.7 | 2.9 | 13.7 | 3.0 | 0.91 |
GIS Walkability Index | 0.1 | 2.4 | -4.1-11.4 | 0.1 | 2.3 | 0.1 | 2.5 | 0.85 |