Descriptive characteristics and unadjusted physical activity and sedentary behaviour patterns of participants (mean+95% CI)
| Total | Difference, boys vs girls | Healthy weight† | Overweight or obese | Difference (healthy weight vs overweight or obesity) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| N | (Mean±95% CI) | (Mean diff±95% CI) | Effect size (d) | N | (Mean±95% CI) | N | (Mean±95% CI) | (Mean diff±95% CI) | Effect size (d) | ||
| Age (years) | |||||||||||
| Boys | (M) | 130 | 11.3 (11.10 to 11.48) | 0.1 (−0.12 to 0.37) | 0.12 | 82 | 11.4 (11.18 to 11.64) | 48 | 11.1 (10.77 to 11.41) | 0.3 (−0.06 to 0.71) | 0.30 |
| Girls | (F) | 168 | 11.2 (11.01 to 11.32) | 124 | 11.1 (10.92 to 11.29) | 44 | 11.3 (11.04 to 11.64) | −0.2 (−0.59 to 0.12) | −0.23 | ||
| Ethnicity–language | |||||||||||
| (Language other than English) | (M) | 17 | 13.60% | 8 | 10.26% | 9 | 19.15% | ||||
| (F) | 21 | 12.50% | 16 | 12.90% | 5 | 11.36% | |||||
| SEIFA quintile (%) | |||||||||||
| Lowest quintile | (M) | 37 | 30.33% | 25 | 32.47% | 12 | 26.67% | ||||
| (F) | 33 | 20.25% | 27 | 22.13% | 6 | 14.63% | |||||
| BMI-z | (M) | 130 | 0.6 (0.41 to 0.84) | 0.3 (0.49 to 0.58) | 0.27 | 82 | −0.1 (−0.31 to 0.03) | 48 | 1.9 (1.77 to 2.10) Φ Φ Φ | −2.1 (−2.33 to −1.82) | −2.95 |
| (F) | 168 | 0.3 (0.15 to 0.48)* | 124 | −0.2 (−0.31 to −0.04) | 44 | 1.7 (1.51 to 1.85) +++ | −1.9 (−2.10 to −1.61) | −2.59 | |||
| Valid wear (days) | |||||||||||
| Valid weekdays | (M) | 130 | 3.9 (3.75 to 4.08) | 0.1 (−0.13 to 0.33) | 0.10 | 82 | 3.8 (3.64 to 4.05) | 48 | 4.0 (3.76 to 4.32) | −0.2 (−0.54 to 0.14) | −0.21 |
| (F) | 168 | 3.8 (3.66 to 3.97) | 124 | 3.8 (3.64 to 4.00) | 44 | 3.8 (3.45 to 3.14) | 0.0 (−0.33 to 0.39) | 0.03 | |||
| Valid weekend days | (M) | 130 | 1.3 (1.15 to 1.43) | 0.0 (−0.17 to 0.18) | 0.01 | 82 | 1.3 (1.17 to 1.51) | 48 | 1.2 (0.99 to 1.43) | 0.1 (−0.14 to 0.41) | 0.17 |
| (F) | 168 | 1.3 (1.17 to 1.40) | 124 | 1.3 (1.20 to 1.46) | 44 | 1.2 (0.91 to 1.40) | 0.2 (−0.09 to 0.43) | 0.23 | |||
| Daily wear-time (min/day)‡ | (M) | 130 | 789.4 (774.99 to 803.71) | −4.0 (−23.33 to 15.37) | −0.05 | 82 | 779.7 (763.42 to 796.01) | 48 | 805.8 (778.43 to 833.19) | −26.1 (−55.62 to 2.44) | −0.32 |
| (Monday–Sunday) | (F) | 168 | 793.3 (780.35 to 806.31) | 124 | 792.4 (775.95 to 808.86) | 44 | 796.0 (777.46 to 814.44) | −3.6 (−33.16 to 26.07) | −0.04 | ||
| Daily activity counts (counts/min)‡ | (M) | 130 | 261.3 (244.28 to 278.31) | 33.5 (12.15 to 54.85) | 0.36 | 82 | 269.1 (247.63 to 290.57) | 48 | 248.0 (219.45 to 276.48) | 21.1 (−14.06 to 56.34) | 0.22 |
| (Monday–Sunday) | (F) | 168 | 227.8 (214.29 to 241.30)** | 124 | 233.8 (217.69 to 249.85) | 44 | 210 (186.00 to 235.90) | 22.8 (−7.79 to 53.43) | 0.26 | ||
| Daily sedentary (min/day)‡ | (M) | 130 | 479.0 (463.41 to 494.57) | −24.3 (−45.20 to −3.46) | −0.27 | 82 | 469.0 (450.72 to 487.17) | 48 | 496.1 (467.41 to 524.88) | −27.2 (−59.26 to 4.86) | −0.31 |
| (Monday–Sunday) | (F) | 168 | 503.3 (489.37 to 517.26)* | 124 | 495.0 (478.00 to 511.93) | 44 | 526.9 (503.86 to 549.85)+ | −31.9 (−63.32 to −0.46) | −0.35 | ||
| Daily LPA (min/day)‡ | (M) | 130 | 192.7 (187.30 to 198.12) | −7.9 (−15.76 to 0.7) | −0.23 | 82 | 191.3 (184.13 to 198.54) | 48 | 195.1 (186.80 to 203.33) | −3.7 (−14.97 to 7.51) | −0.12 |
| (Monday–Sunday) | (F) | 168 | 200.6 (194.96 to 206.15) | 124 | 204.6 (198.25 to 210.95) | 44 | 189.2 (177.74 to 200.57) + | 15.5 (2.90 to 28.00) | 0.43 | ||
| Daily MVPA (min/day)‡ | (M) | 130 | 116.7 (111.58 to 121.84) | 28.3 (21.80 to 34.70) | 1.01 | 82 | 118.5 (112.03 to 124.97) | 48 | 113.7 (105.02 to 122.29) | 4.9 (−5.75 to 15.48) | 0.16 |
| (Monday–Sunday) | (F) | 168 | 88.5 (84.37 to 92.56)*** | 124 | 91.8 (86.97 to 96.60) | 44 | 79.1 (71.73 to 86.43) ++ | 12.7 (3.58 to 21.85) | 0.48 | ||
| Meeting MVPA guidelines | (M) | 126 | 96.9% | 80 | 97.6% | 46 | 95.8% | ||||
| (Average method %) (Monday–Sunday) | (F) | 144 | 85.7%** | 112 | 90.3% | 32 | 72.7%++ | ||||
Independent-sample t-tests or χ2 tests used to determine significant mean or proportional differences between boys and girls overall with *p≤0.05; **p≤0.01; ***p≤0.001; Cohen's d effect size was calculated for mean differences in ratio data; boys with healthy weight boys differed significantly to boys with overweight/obesity Φp≤0.05; Φ Φ Φp≤0.001; Girls with healthy weight girls differed significantly to girls with overweight/obesity with +p≤0.05; ++p≤0.01; +++p≤0.001);
†Healthy weight category included underweight.
‡Based on >600 min/day of monitoring over ≥3 days.
SEIFA, Index of Relative Socioeconomic Advantage and Disadvantage (IRSAD).