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Table 3b Effect of pubertal stage interaction on association of cardiometabolic risk score β by BMI

From: Associations of pubertal stage and body mass index with cardiometabolic risk in Hong Kong Chinese children: A cross-sectional study

Cardiometabolic Risk Score β * Boys (n = 828) Girls (n = 1157)
  B SE P R2 (95 % CI) p (F) B SE p R2 (95 % CI) p (F)
Model 1     14.7 % (10.2 % – 19.2 %) <0.001#     6.6 % (3.8 % – 9.4 %) <0.001#
ZBMI 1.020 0.086 <0.001    0.619 0.069 <0.001   
Model 2     15.5 % (10.9 % – 20.1 %) 0.019     7.9 % (4.9 % – 10.9 %) <0.001
ZBMI 1.076 0.089 <0.001    0.797 0.082 <0.001   
Pubertal stage:           
Pre-pubertal (ref)           
Pubertal −0.415 0.226 0.067    −0.229 0.224 0.306   
Late/Post-pubertal −0.647 0.230 0.005    −0.804 0.236 0.001   
Model 3     16.3 % (11.7 % – 20.9 %) 0.030     8.4 % (5.3 % – 11.5 %) 0.051
ZBMI 0.811 0.158 <0.001    1.328 0.239 <0.001   
Pubertal stage:           
Pre-pubertal (ref)           
Pubertal −0.303 0.230 0.189    −0.801 0.324 0.014   
Late/Post-pubertal −0.549 0.233 0.019    −1.314 0.316 <0.001   
Interaction terms:           
ZBMI * Pubertal 0.561 0.216 0.010    −0.675 0.283 0.017   
ZBMI * Late/Post-pubertal 0.192 0.222 0.389    −0.565 0.262 0.031   
  1. ZBMI: Body mass index (BMI) z score
  2. B: un-standardized regression coefficient
  3. SE: standard error
  4. p: p-value testing the significance of the regression coefficient
  5. R2: variance explained by the regression model
  6. p (F): p-value testing the significance of F change from the preceding model (#model 1 includes only the intercept term)
  7. ref: reference group of the categorical variable analyzed by creating dummy variables
  8. * Cardiometabolic risk score β includes all components of risk score α except waist circumference