Skip to main content

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