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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