Methods: Obese children aged 8-18 were counselled by a social worker, dietitian, and fitness specialist (bi-weekly for 3 months, monthly for 9 months) in this multidisciplinary outpatient program. Primary outcome measure was change in BMI. Secondary outcome measures were changes in quality of life, body composition, dietary and physical activity habits, and metabolic risk factors.
Results: 42 ... [Show full abstract] children (21 girls; mean age 12.8 years, SD±3.17) completed the study, 46 (30 girls) dropped out (attrition rate 52%). Median program attendance was 79% (range 43-100). Mean BMI remained unchanged (31.94 kg/m2, SD±6.02, p=0.656) after the more intensive first 3 months of the program, but increased by 0.82 to 32.76 kg/m2 (SD±6.57) during the following less intensive 9 months. However, mean BMI z-score decreased significantly from 2.19 (SD±0.34) to 2.15 (SD±0.37, p=0.004) at 3 months, and further to 2.12 (SD±0.40, p=0.016) at 12 months. Mean body fat content (Bioelectrical Impedance Analysis) marginally decreased by 0.73% (40.36 (SD±7.4) to 39.64% (SD±8.08), p=0.406), mean lean body mass significantly increased by 4.02% (49.22 (SD±15.7) to 53.24% (SD±14.90), p=0.000). Quality of Life (PedsQL 4.0) significantly improved: mean emotional functioning score from 68.2 (SD±15.2) to 76.1% (SD±14.3), p=0.002, mean physical functioning score from 61.97 (SD±19.5) to 73.3% (SD±18.6), p=0.001).
Conclusion: BMI z-score and Quality of Life significantly improved, further BMI increase was not prevented.