Association of child characteristics with the child providing accelerometer data for the required number of days (3 days)
| Variable (unit change for OR) | Provided required data, N=1629; n (%), mean (SD) or median (IQR) | Did not provide required data, N=419; n (%), mean (SD) or median (IQR) | OR (95% CI) per category or unit for scores/continuous variables | p Value |
|---|---|---|---|---|
| Gender * | ||||
| Male | 748 (74.9) | 251 (25.1) | ref (1) | <0.001 |
| Female | 881 (84.0) | 168 (16.0) | 1.76 (1.43 to 2.16) | |
| Deprivation (home postcode)* | ||||
| Low (least deprived) | 599 (87.2) | 88 (12.8) | ref (1) | <0.001 |
| Mid | 550 (80.8) | 131 (19.2) | 0.62 (0.42 to 0.90) | |
| High (most deprived) | 476 (70.6) | 198 (29.4) | 0.35 (0.24 to 0.51) | |
| BMI (kg/m2) † | 17.7 (2.9) (n=1432) | 17.7 (3.0) (n=355) | 0.99 (0.96 to 1.03) | 0.6 |
| Overweight/obese* | ||||
| Normal weight | 1134 (80.0) | 284 (20.0) | ref (1) | 0.6 |
| Overweight | 227 (82.0) | 50 (18.0) | 1.14 (0.82 to 1.58) | |
| Obese | 70 (76.9) | 21 (23.1) | 0.83 (0.51 to 1.35) | |
| Waist circumference† | 62.1 (8.1) (n=1519) | 62.0 (7.7) (n=386) | 1.00 (0.99 to 1.02) | 0.8 |
| Self-report screen time (half hour unit; OR per half hour) ‡ | ||||
| Weekday all screen | 3.0 (1.5–7.0) (n=1625) | 5.0 (2.0–10.0) (n=413) | 0.97 (0.96 to 0.98) | <0.001 |
| Saturday all screen | 3.0 (1.0–7.0) (n=1620) | 4.0 (1.5–9.5) (n=412) | 0.97 (0.96 to 0.99) | <0.001 |
| Self-report recreation | ||||
| Weekday outdoor play (half hour units; OR per half hour) ‡ | 1.0 (0.0–2.5) (n=1625) | 1.0 (0.5–4.0) (n=414) | 0.95 (0.93 to 0.98) | <0.001 |
| Weekday classes/clubs | ||||
| None | 1050 (65) | 285 (69) | Ref (1) | 0.1 |
| Some | 575 (35) | 129 (31) | 1.21 (0.96 to 1.53) | |
| Saturday outdoor play (half hour units; OR per half hour) ‡ | 2.0 (0.5–4.0) (n=1620) | 2.0 (0.5–6.0) (n=412) | 0.99 (0.96 to 1.01) | 0.3 |
| Saturday classes/clubs | ||||
| None | 1257 (78) | 325 (79) | Ref (1) | 0.6 |
| Some | 363 (22) | 87 (21) | 1.08 (0.83 to 1.40) | |
| Self-efficacy for PA (mean score on scale 1–5; OR per 1 of score)† | 4.0 (0.7) (n=1624) | 3.8 (0.8) (n=414) | 1.25 (1.10 to 1.43) | <0.001 |
| Perceived physical environment (mean score on scale 1–5; OR per 1 of score)† | ||||
| Positive environment | 4.1 (0.9) (n=1623) | 4.0 (1.0) (n=409) | 1.13 (1.01 to 1.27) | 0.03 |
| Negative environment | 2.2 (1.0) (n=1622) | 2.2 (1.1) (n=409) | 0.95 (0.87 to 1.04) | 0.3 |
| Paternal factors (mean score on scale 1–4; OR per 1 of score)† | ||||
| Modelling physical activity | 3.0 (0.7) (n=1522) | 3.0 (0.8) (n=365) | 1.14 (0.99 to 1.31) | 0.08 |
| Logistic support for physical activity | 3.0 (0.8) (n=1516) | 2.9 (0.9) (n=361) | 1.05 (0.91 to 1.21) | 0.5 |
| Limitation of sedentary activities | 2.7 (0.9) (n=1515) | 2.6 (0.9) (n=362) | 1.10 (0.95 to 1.26) | 0.2 |
| Maternal factors (mean score on scale 1–4; OR per 1 of score)† | ||||
| Modelling physical activity | 2.9 (0.8) (n=1596) | 2.8 (0.8) (n=403) | 1.22 (1.05 to 1.41) | 0.008 |
| Logistic support for physical activity | 3.1 (0.8) (n=1594) | 2.9 (0.9) (n=399) | 1.21 (1.05 to 1.39) | 0.007 |
| Limitation of sedentary activities | 2.8 (0.9) (n=1594) | 2.6 (0.9) (n=401) | 1.33 (1.17 to 1.51) | <0.001 |
*Number (%).
†Mean (SD).
‡Median (IQR).
BMI, body mass index; PA, physical activity.