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Table 3 Independent factors and change in BMI SDS in the intervention group: multilevel regression analysis (N = 181)

From: Evaluation of a school-based multicomponent behavioural intervention in deprived urban areas for children classified as overweight, obese or at risk for overweight

Independent factors Beta 95% CI p-value
Gender
 Girls vs boys − 0.01 − 0.08 to 0.07 0.86
Age (years) 0.03 0.001 to 0.06 0.04
Ethnicity
 Surinamese vs Moroccan − 0.01 − 0.15 to 0.13 0.86
 Surinamese vs Turkish − 0.01 − 0.15 to 0.13 0.88
 Surinamese vs Other 0.02 − 0.10 to 0.14 0.76
BMI SDS baseline 0.02 − 0.04 to 0.08 0.49
Evaluation period (daysa) − 0.0004 − 0.0001 to 0.0001 0.38
School year
 2012 vs 2011 0.03 − 0.05 to 0.10 0.47
Attendance rate (%) − 0.11 − 0.40 to 0.18 0.45
Intraclass Correlation Coefficient school level: 0.053
  1. Mutually adjusted associations with change in BMI SDS in the intervention group, missing data n = 14 participants
  2. aNumber of days between baseline and follow-up