Table 4

Sensitivity and specificity of overweight and obesity: BMI percentile vs. DXA percent body fat cutpoints
BMI DXA % body fat
Kappa Sens Spec LR+ LR- AUC
Females: ≥30.10% Males: ≥24.63%2 Females: <30.10% Males: <24.63%2 0.63 0.73 0.90 7.3 0.31 0.90
≥85th percentile1 169 64
<85th percentile1 64 578
Females: ≥34.00% Males: ≥29.00%2 Females: <34.00% Males: <29.00%2 0.71 0.75 0.96 19.6 0.26 0.94
≥95th percentile1 85 29
<95th percentile1 29 732

1 Cutoffs defined by CDC growth reference curves [20].

2 Based on the prevalence of BMI percentile-defined overweight and obesity in females and males in our dataset. Abbreviations are as follows: Sens sensitivity, Spec specificity, LR+ likelihood ratio positive, LR- likelihood ratio negative, AUC area under the receiver operating characteristic curve.

Boeke et al.

Boeke et al. BMC Pediatrics 2013 13:99   doi:10.1186/1471-2431-13-99

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