Table 3.
Outcomes of trial of primary care surveillance and intervention for overweight or obese children, 6 months after randomisation
| Outcome | Intervention | Control | Unadjusted difference | Adjusted difference† | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No of participants | Measure* | No of participants | Measure* | Mean (95% CI) | P value | Mean (95% CI) | P value | ||||
| Anthropometry: | |||||||||||
| Child BMI | 132 | 20.5 (2.6) | 118 | 20.6 (2.2) | −0.13 (−0.74 to 0.48) | 0.7 | −0.12 (−0.40 to 0.15) | 0.4 | |||
| Child waist circumference | 131 | 70.1 (8.4) | 117 | 70.4 (8.2) | −0.30 (−2.37 to 1.77) | 0.8 | 0.12 (−0.98 to 1.22) | 0.8 | |||
| Maternal BMI | 125 | 28.4 (5.7) | 115 | 27.3 (5.1) | 1.08 (−0.31 to 2.47) | 0.1 | 0.18 (−0.27 to 0.64) | 0.4 | |||
| Paternal BMI | 101 | 27.9 (4.0) | 83 | 27.9 (3.7) | −0.08 (−1.20 to 1.05) | 0.9 | −0.21 (−0.72 to 0.30) | 0.4 | |||
| Accelerometry: | |||||||||||
| Activity (counts/min) | 122 | 346 (120) | 109 | 320 (100) | 26 (−3 to 54) | 0.08 | 24 (−4 to 52) | 0.09 | |||
| % of time spent in MVPA | 122 | 16.1 (5.5) | 109 | 15.2 (4.3) | 0.9 (−0.4 to 2.2) | 0.2 | 0.7 (−0.5 to 2.0) | 0.2 | |||
| Parent-proxy report: | |||||||||||
| “High” v “low” activity | 127 | 18.3% | 115 | 19.8% | 0.82 (0.61 to 1.09)‡ | 0.2 | 0.75 (0.55 to 1.04)‡ | 0.08 | |||
| Nutrition score | 125 | 3.9 (1.0) | 114 | 3.6 (1.2) | 0.3 (0.1 to 0.5) | 0.01 | 0.2 (−0.03 to 0.4) | 0.1 | |||
| PedsQL total: | 133 | 77.6 (12.8) | 118 | 74.5 (14.1) | 3.2 (−0.2 to 6.5) | 0.06 | 3.1 (0.6 to 5.7) | 0.02 | |||
| Physical summary | 133 | 80.2 (16.6) | 118 | 76.0 (17.7) | 4.2 (−0.1 to 8.4) | 0.06 | 4.0 (0.6 to 7.3) | 0.02 | |||
| Psychosocial summary | 133 | 76.3 (12.6) | 118 | 73.7 (13.9) | 2.6 (−0.7 to 5.9) | 0.1 | 2.7 (−0.001 to 5.3) | 0.05 | |||
| Child self report: | |||||||||||
| PedsQL total: | 130 | 78.8 (12.3) | 117 | 77.8 (11.8) | 1.0 (−2.1 to 4.0) | 0.5 | 1.3 (−1.7 to 4.4) | 0.4 | |||
| Physical summary | 130 | 82.6 (11.6) | 116 | 82.1 (11.6) | 0.5 (−2.4 to 3.4) | 0.7 | 0.6 (−2.4 to 3.6) | 0.7 | |||
| Psychosocial summary | 130 | 76.7 (14.5) | 116 | 75.4 (14.2) | 1.3 (−2.4 to 4.9) | 0.5 | 1.8 (−1.8 to 5.5) | 0.3 | |||
| Body dissatisfaction | 130 | 1.1 (1.0) | 115 | 1.0 (1.0) | 0.11 (−0.15 to 0.36) | 0.4 | 0.09 (−0.17 to 0.34) | 0.5 | |||
| “Positive” v “negative” appearance/self worth | 130 | 70.1% | 115 | 69.6% | 1.05 (0.75 to 1.48)‡ | 0.8 | 1.12 (0.79 to 1.58)‡ | 0.5 | |||
BMI=body mass index. MVPA=moderate to vigorous physical activity. PedsQL=paediatric quality of life inventory.
*Values are means (standard deviations) unless stated otherwise. Mean differences are shown for quantitative outcomes and odds ratios for dichotomous outcomes.
†Comparisons adjusted for social disadvantage index, age at randomisation, sex, baseline score for the outcome (where collected), and raw BMI at baseline. Analyses of child self reported measures were not adjusted for baseline, as only collected at 6 and 12 month follow-ups. Sample size in adjusted analyses at least 88 in the intervention arm and 75 in the control arm.
‡Values are odds ratios (95% CI).