Table 4. Estimated changes in follow-up depressive symptoms associated with 60-minute reallocations from the mean baseline movement behaviour composition*.
| Younger boys (N = 2,836) | Older boys (N = 2,264) | Younger girls (N = 5,060) | Older girls (N = 4,460) | |
|---|---|---|---|---|
| Reallocation | Change (95% CI) | Change (95% CI) | Change (95% CI) | Change (95% CI) |
| + Sleep duration; − MVPA | -0.033 (-0.065; -0.001) | -0.026 (-0.046; -0.005) | -0.049 (-0.079; -0.019) | 0.025 (0.006; 0.044) |
| + Screen time; − MVPA | 0.026 (-0.005; 0.057) | 0.024 (0.005; 0.044) | 0.019 (-0.009; 0.048) | 0.072 (0.054; 0.090) |
| + Sleep duration; − Screen time | -0.065 (-0.080; -0.050) | -0.054 (-0.065; -0.044) | -0.075 (-0.093; -0.057) | -0.052 (-0.064; -0.039) |
| + MVPA; − Screen time | -0.037 (-0.054; -0.020) | -0.030 (-0.040; -0.020) | -0.035 (-0.054; -0.016) | -0.054 (-0.066; -0.043) |
| + Screen time; − Sleep duration | 0.062 (0.047; 0.076) | 0.053 (0.043; 0.063) | 0.072 (0.054; 0.089) | 0.050 (0.038; 0.062) |
| + MVPA; − Sleep duration | 0.031 (0.015; 0.048) | 0.027 (0.017; 0.038) | 0.044 (0.025; 0.063) | 0.000 (-0.012; 0.012) |
MVPA, moderate-to-vigorous physical activity; CI, confidence interval.
All models are adjusted for race/ethnicity, BMI z-scores, baseline movement behaviour composition, and baseline depressive symptoms.
*These changes are expressed as proportions of the pooled SD. Reallocation of 60 minutes to one activity (+) from another activity.
(-) and resulting change in depressive symptoms, which could be either significant (decrease (-) or increase (+) while the 95% confidence intervals do not include value 1) or not significant (when the 95% confidence intervals include value 1).