Waist circumference, blood pressure, and lipid components of the metabolic syndrome - 09/08/11
Reprint requests: Silva A. Arslanian, MD, Director, Weight Management & Wellness Center, Director, General Clinical Research Center, Children’s Hospital of Pittsburgh, 3705 Fifth Avenue at DeSoto Street, Pittsburgh, PA 15213Résumé |
Objectives |
To examine whether waist circumference (WC) predicts blood pressure (BP) and lipid components of the metabolic syndrome independent of body mass index (BMI) percentile in youths.
Study design |
The study group comprised 70 African-American youths and 97 Caucasian youths. Outcome measures included BP, lipid profile, and abdominal adipose tissue (AT).
Results |
Both BMI percentile and WC were significantly (P < .05) associated with daytime and nighttime systolic and diastolic BP, triglycerides (TG), high-density lipoprotein (HDL), and TG/HDL ratio independent of race. In African-Americans and Caucasians, WC remained a significant (P < .05) correlate of daytime (r = .50 and .59, respectively) and nighttime (r = .49 and .62, respectively) systolic BP, and in Caucasians, TG, HDL, TG/HDL, and very-low-density lipoprotein after controlling for BMI percentile. After accounting for age, sex, and race, the addition of WC to BMI percentile increased the variance (R2) in systolic BP by 15% (P < .05). The inclusion of WC with BMI percentile explained an additional 3% and 7% of the variance in TG and HDL, respectively (P < .05).
Conclusions |
The prediction of childhood obesity-related health risks is significantly improved by the inclusion of WC in addition to BMI percentile. This observation supports the notion that WC should be included in the evaluation of childhood obesity along with BMI percentile to identify those at increased health risks due to excess abdominal fat.
Le texte complet de cet article est disponible en PDF.Abbreviations : AT, BMI, BP, GCRC, HDL, LDL, TG, WC, WHR
Plan
| Supported by the US Public Health Service (grants RO1-HD-27503, K24-HD-01357, and MO1-RR-00084), the General Clinical Research Center of Children’s Hospital of Pittsburgh, and Eli Lilly and Company. |
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| None of the authors has any conflict of interest to declare. |
Vol 149 - N° 6
P. 809-816 - décembre 2006 Retour au numéro
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