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Table 4 Results from linear mixed-models predicting BMI z-score and waist circumference z-scorea

From: Does parental and adolescent participation in an e-health lifestyle modification intervention improve weight outcomes?

 

BMI z-score

Waist circumference z-score

 

Participation

Self-monitoring

Participation

Self-monitoring

Fixed effects

Intercept

3.381 (0.536)**

3.400 (0.533)**

4.041 (1.291)**

4.153 (1.286)**

Time (weeks)

0.001 (0.001)

−0.002 (0.001)

0.000 (0.008)

−0.010 (0.007)

Participation rate (%)

−0.124 (0.231)

 

−0.212 (0.578)

 

Time x Participation rate

−0.008 (0.003)**

 

−0.018 (0.017)

 

Self-monitoring rate (%)

 

−0.290 (0.210)

 

−0.711 (0.525)

Time x Self-monitoring rate

 

−0.002 (0.003)

 

0.009 (0.014)

Random effects

Intercept standard deviation

0.721 (0.042)

0.718 (0.042)

1.631 (0.123)

1.618 (0.122)

Slope standard deviation

0.007 (0.001)

0.007 (0.001)

0.027 (0.007)

0.027 (0.007)

Residual standard deviation

0.116 (0.008)

0.116 (0.008)

0.868 (0.063)

0.869 (0.064)

  1. aTable displays coefficients and standard errors (in parentheses); Models adjusted for baseline adolescent age, adolescent gender, household income, maternal education, and ethnicity
  2. *p < 0.05; **p < 0.01