Table 3. Associations between activity behaviors and outcomes estimated by compositional multivariable regression models.
| Outcome (z-score) . | Standardized beta (95% CI) . | P value . |
|---|---|---|
| Adiposity (N=1175) | ||
| Model 1. MVPA: R | -0.21 (-0.28 to -0.15) | <0.001 |
| Model 2. Light physical activity: R | 0.16 (0.10 to 0.23) | <0.001 |
| Model 3. Sedentary time: R | 0.14 (0.03 to 0.26) | 0.02 |
| Model 4. Sleep: R | -0.17 (-0.27 to -0.06) | 0.002 |
| HRQL (N=1181) | ||
| Model 1. MVPA: R | 0.15 (0.08 to 0.22) | <0.001 |
| Model 2. Light physical activity: R | -0.07 (-0.14 to -0.00) | 0.04 |
| Model 3. Sedentary time: R | -0.20 (-0.32 to -0.08) | 0.001 |
| Model 4. Sleep: R | 0.14 (0.04 to 0.25) | 0.008 |
| Academic achievement (N=931) | ||
| Model 1. MVPA: R | -0.01 (-0.08 to 0.07) | 0.84 |
| Model 2. Light physical activity: R | -0.10 (-0.17 to -0.03) | 0.006 |
| Model 3. Sedentary time: R | 0.14 (0.01 to 0.27) | 0.03 |
| Model 4. Sleep: R | 0.00 (-0.11 to 0.11) | 0.98 |
| Outcome (z-score) . | Standardized beta (95% CI) . | P value . |
|---|---|---|
| Adiposity (N=1175) | ||
| Model 1. MVPA: R | -0.21 (-0.28 to -0.15) | <0.001 |
| Model 2. Light physical activity: R | 0.16 (0.10 to 0.23) | <0.001 |
| Model 3. Sedentary time: R | 0.14 (0.03 to 0.26) | 0.02 |
| Model 4. Sleep: R | -0.17 (-0.27 to -0.06) | 0.002 |
| HRQL (N=1181) | ||
| Model 1. MVPA: R | 0.15 (0.08 to 0.22) | <0.001 |
| Model 2. Light physical activity: R | -0.07 (-0.14 to -0.00) | 0.04 |
| Model 3. Sedentary time: R | -0.20 (-0.32 to -0.08) | 0.001 |
| Model 4. Sleep: R | 0.14 (0.04 to 0.25) | 0.008 |
| Academic achievement (N=931) | ||
| Model 1. MVPA: R | -0.01 (-0.08 to 0.07) | 0.84 |
| Model 2. Light physical activity: R | -0.10 (-0.17 to -0.03) | 0.006 |
| Model 3. Sedentary time: R | 0.14 (0.01 to 0.27) | 0.03 |
| Model 4. Sleep: R | 0.00 (-0.11 to 0.11) | 0.98 |
Analyses adjusted for age, sex, pubertal status and household socioeconomic position.
MVPA = moderate-to-vigorous physical activity; R = Geometric mean of remaining activities. HRQL = health-related quality of life. Adiposity is a composite of body mass index z-score, waist girth z-score and percentage body fat; HRQL is estimated as the PedsQL Total Scale Score; Academic achievement is the mean of Grade 7 numeracy and literary (mean of reading, writing, spelling, and grammar and punctuation NAPLAN scores).