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Table 4 Correlation matrix of childhood BMI trajectory characteristics (N = 3,289)

From: Childhood body mass index trajectories: modeling, characterizing, pairwise correlations and socio-demographic predictors of trajectory characteristics

   1 week to infancy peak Infancy peak to adiposity rebound Adiposity rebound to age 18 years
Parameters 1 2 3 4 5 6 7 8 9 10 11 12 13
1 week to infancy peak              
1 Age at infancy peak, months              
2 BMI at infancy peak, kg/m2 0.39             
3 Change in BMI, kg/m2 -0.03 0.45            
4 Velocity, kg/m2/month -0.25 0.34 0.96           
5 Area under curve (kg/m2-months) 0.96 0.63 0.07 -0.14          
Infancy peak to adiposity rebound              
6 Age at adiposity rebound, months -0.09 0.15 0.12 0.11 -0.08         
7 BMI at adiposity rebound, kg/m2 0.59 0.76 0.26 0.13 0.76 -0.48        
8 Age difference, months -0.17 0.12 0.13 0.13 -0.16 0.99 -0.53       
9 Change in BMI, kg/m2 0.46 0.01 -0.13 -0.20 0.42 -0.91 0.66 -0.94      
10 Velocity, kg/m2/month 0.84 0.23 -0.10 -0.27 0.79 -0.54 0.71 -0.61 0.82     
11 Area under curve (kg/m2-months) -0.06 0.33 0.21 0.19 0.01 0.98 -0.32 0.97 -0.87 -0.51    
Adiposity rebound to age 18 years              
12 Change in BMI, kg/m2 -0.10 -0.18 -0.07 -0.01 -0.09 -0.94 0.38 -0.93 0.79 0.38 -0.93   
13 Velocity, kg/m2/month -0.08 -0.18 -0.07 -0.02 -0.07 -0.95 0.39 -0.93 0.80 0.40 -0.93 0.99  
14 Area under curve (kg/m2-months) 0.22 0.16 0.03 0.00 0.28 -0.94 0.71 -0.95 0.91 0.64 -0.87 0.91 0.92
  1. Strong correlations (|r| ≥ 0.5) are bold
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BMC Medical Research Methodology

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