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. 2013 Oct 23;98(6):1417–1424. doi: 10.3945/ajcn.113.065961

TABLE 5.

Correlations of BMI and PBFSlaughter 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
1

P 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 PBFSlaughter. 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 PBFSlaughter. 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 PBFSlaughter (r = 0.42); P < 0.05 for both comparisons. CVD, cardiovascular disease; DBP, diastolic blood pressure; PBFSlaughter, percentage body fat derived by using the Slaughter skinfold-thickness equations; SBP, systolic blood pressure.

2

Levels of triglycerides and insulin were log transformed.