TABLE 5.

Correlations of BMI and PBF_Slaughter with age-adjusted levels of CVD risk factors in the Bogalusa Heart Study¹

Characteristic	Risk factor summary	Triglycerides2	LDL cholesterol	HDL cholesterol	Insulin2	SBP	DBP
Overall
Adjusted BMI	0.47*	0.32*	0.17	−0.22*	0.46*	0.22*	0.14*
BMI-for-age	0.44*	0.28	0.15*	−0.20*	0.42*	0.24*	0.16*
PBFSlaughter	0.42	0.30	0.17	−0.19	0.39	0.18	0.13
Boys
Adjusted BMI	0.48*	0.33	0.18	−0.24*	0.46*	0.21*	0.13
BMI-for-age	0.44	0.29*	0.16*	−0.22*	0.41	0.22*	0.13*
PBFSlaughter	0.44	0.34	0.19	−0.20	0.41	0.17	0.11
Girls
Adjusted BMI	0.47*	0.30*	0.16*	−0.20*	0.46*	0.24*	0.16
BMI-for-age	0.45*	0.28	0.14	−0.19	0.43*	0.27*	0.18*
PBFSlaughter	0.42	0.28	0.15	−0.18	0.41	0.20	0.16

¹P values assess whether the correlation between the risk factor and either adjusted BMI or BMI-for-age is equal to the correlation between the risk factor and PBF_Slaughter. Adjusted levels of BMI and risk factors were obtained from sex-specific regression models in which age was used to predict the level of each risk factor; residuals from these models represent sex- and age-adjusted levels. *P < 0.05 for H₀: correlation with adjusted BMI or BMI-for-age is equal in magnitude to the correlation with PBF_Slaughter. The P values were obtained through bootstrapping that accounted for the within-child clustering. For example, in the overall sample, the risk factor summary was more strongly associated with adjusted BMI (r = 0.47) and with BMI-for-age (r = 0.44) than with PBF_Slaughter (r = 0.42); P < 0.05 for both comparisons. CVD, cardiovascular disease; DBP, diastolic blood pressure; PBF_Slaughter, percentage body fat derived by using the Slaughter skinfold-thickness equations; SBP, systolic blood pressure.

²Levels of triglycerides and insulin were log transformed.