Demographics of individuals analyzed in NHANES 1999–2004 by BMI category displayed as total number (for gender and race/ethnicity) and mean ± standard deviation for all other measures.

BMI categories were defined as follows: underweight BMI (2), normal BMI (> = 18.5 kg/m2 and 2), overweight BMI (> = 25 kg/m2 and 2), and obese BMI (> = 30 kg/m2). All measures displayed were significantly different (PaDifferences between Overweight & Obese were not significantly significant.bDifferences between Underweight & Normal were not significantly significant.cDifferences between Underweight & Overweight were not significantly significant.