Table 6.
Independent variables | Dependent variable: steps per day | |||||
---|---|---|---|---|---|---|
Girls | Boys | |||||
B | 95% CI | p | B | 95% CI | p | |
Fixed Effects | ||||||
(Intercept) | 11,238.91 | 10,027.93–12,449.88 | < 0.001 | 12,811.19 | 11,529.94–14,092.44 | < 0.001 |
School SES: low (ref: high) | − 331.50 | − 1291.55 - 628.56 | 0.502 | − 380.06 | − 1357.45 - 597.32 | 0.449 |
Site: Vancouver (ref: Ottawa) | 518.26 | − 630.67 - 1667.18 | 0.381 | − 144.87 | − 1339.18 - 1049.45 | 0.813 |
Site: Trois-Rivières | − 165.61 | − 1384.79 - 1053.57 | 0.791 | 301.87 | − 955.33 - 1559.08 | 0.640 |
Type of urbanization: suburban (ref: urban) | 266.78 | − 876.33 - 1409.88 | 0.649 | 89.97 | − 1072.09 - 1252.04 | 0.880 |
Type of urbanization: rural | −78.52 | − 1250.97 - 1093.93 | 0.896 | 154.67 | − 1060.84 - 1370.17 | 0.804 |
Parental education: high school or less (ref: University) | 217.16 | − 501.66 - 935.98 | 0.556 | −459.46 | − 1406.80 - 487.87 | 0.346 |
Parental education: college | 93.23 | −452.51 - 638.96 | 0.739 | − 397.81 | − 1081.85 - 286.23 | 0.259 |
Age in years (centered) | −56.42 | − 288.97 - 176.12 | 0.636 | −478.02 | −778.04 - -178.00 | 0.003 |
Car ownership: ≥ 2 cars (ref: ≤ 1 car) | 136.17 | − 328.47 - 600.81 | 0.568 | 185.22 | − 432.94 - 803.38 | 0.559 |
Home ownership: yes (ref: no) | −65.26 | −597.69 - 467.16 | 0.811 | 183.09 | − 523.90 - 890.08 | 0.614 |
Random Effects | ||||||
σ2 | 10,316,244.723 | 14,336,948.928 | ||||
τ00, School_ID | 1,673,547.941 | 1,455,090.348 | ||||
NSchool_ID | 37 | 37 | ||||
ICCSchool_ID | 0.140 | 0.092 | ||||
Observations | 935 | 764 | ||||
R2 / Ω02 | 0.167 / 0.160 | 0.140 / 0.129 | ||||
AIC | 17,836.433 | 14,823.427 | ||||
Deviance | 17,810.433 | 14,797.427 |
B Unstandardized beta coefficient, CI Confidence interval, p p-value, SES Socioeconomic status, σ2 variance within cluster groups (schools), τ00 variance within the dependent variable between schools, N Number of schools, ICC Intraclass correlation coefficient, R2 / Ω02 pseudo R2 estimates, AIC Akaike information criterion