Utility of body mass index, waist-to-height-ratio and cardiorespiratory fitness thresholds for identifying cardiometabolic risk in 10.4–17.6-year-old children

Duncan S. Buchan, Julien S. Baker

Research output: Contribution to journalArticle

5 Citations (Scopus)
120 Downloads (Pure)

Abstract

Objective 
To examine the utility of Body Mass Index (BMI), Waist-to-Height-Ratio (WHtR) and cardiorespiratory fitness thresholds to identify cardiometabolic risk in youth. 
Methods 
Cross-sectional cardiometabolic risk factor variables on 534 children aged 10.4–17.6 years of age (52% boys) from the United Kingdom were used. Binary logistic regression and receiver operating characteristic curves were used to examine the utility of established age and gender specific thresholds for BMI, WHtR and cardiorespiratory fitness to identify individuals with increased cardiometabolic risk (increased clustered triglycerides, HDL-cholesterol, systolic blood pressure and glucose). 
Results 
A WHtR ≥ 0.5 increased the odds by 11.4 (95% confidence interval 4.7, 27.4, P < 0.001) of having increased cardiometabolic risk in boys and by 2.5 (1.2, 5.3, P = 0.020) for girls. Similar associations were observed for BMI and cardiorespiratory fitness in both boys and girls with increased cardiometabolic risk. BMI-z, WHtR and cardiorespiratory fitness all showed a significant ability in identifying individuals for increased cardiometabolic risk in boys and girls (P < 0.05) despite poor area under the curve (AUC) values (<0.70). Combining anthropometrical variables did improve the diagnostic accuracy for identifying cardiometabolic risk in boys, evidenced by an increased AUC of 0.74 (0.64, 0.85, P < 0.001), but not in girls. 
Conclusion 
The magnitude of associations was broadly similar for BMI, WHtR and cardiorespiratory fitness in identifying individuals at increased cardiometabolic risk. Yet, combining BMI with WHtR in boys may provide a more accurate method for identifying those at increased cardiometabolic risk.
Original languageEnglish
Pages (from-to)567-575
Number of pages9
JournalObesity Research & Clinical Practice
Volume11
Issue number5
Early online date12 Jan 2017
DOIs
Publication statusE-pub ahead of print - 12 Jan 2017

Keywords

  • Cardiometabolic risk
  • Waist-to-Height-Ratio
  • Body Mass Index
  • Cardiorespiratory fitness
  • Children

Fingerprint Dive into the research topics of 'Utility of body mass index, waist-to-height-ratio and cardiorespiratory fitness thresholds for identifying cardiometabolic risk in 10.4–17.6-year-old children'. Together they form a unique fingerprint.

  • Cite this