Table 3 Intra-class correlation coefficient (ICC) and 95% confidence interval (CI) for measures of physical activity
School | Class | School + Class | ||||
|---|---|---|---|---|---|---|
ICC | 95% CI | ICC | 95% CI | ICC | 95% CI | |
Inactive during leisure time (n = 67,417) | 0.03 | (0.02–0.04) | 0.06 | (0.05–0.06) | 0.08 | (0.07–0.09) |
Very active during leisure time (n = 69,121) | 0.03 | (0.02–0.04) | 0.06 | (0.05–0.06) | 0.09 | (0.08–0.10) |
Organised physical activity (n = 63,986) | 0.04 | (0.03–0.06) | 0.06 | (0.06–0.06) | 0.10 | (0.09–0.12) |
Self-organised physical activity (n = 63,986) | 0.01 | (0.01–0.02) | 0.02 | (0.02–0.03) | 0.04 | (0.03–0.04) |
Physically active at school during leisure time (n = 63,986) | 0.09 | (0.06–0.11) | 0.06 | (0.06–0.06) | 0.15 | (0.12–0.17) |
Active transportation (n = 69,070) | 0.08 | (0.07–0.11) | 0.04 | (0.04–0.04) | 0.12 | (0.10–0.14) |