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Predictive Utility of Anthropometric Based Cut-offs in Assessing Excess Adiposity among Preschool Children in a Multiethnic Population
Ramcharitar-Bourne, A; Nichols, SD; Badrie, N.
  • Ramcharitar-Bourne, A; The University of the West Indies. Department of Agricultural Economics and Extension. St. Augustine. TT
  • Nichols, SD; The University of the West Indies. Department of Agricultural Economics and Extension. St. Augustine. TT
  • Badrie, N; The University of the West Indies. Department of Food Production. St. Augustine. TT
West Indian med. j ; 69(2): 114-120, 2021. tab
Article in English | LILACS | ID: biblio-1341881
ABSTRACT
ABSTRACT

Objective:

Screening for childhood obesity is a necessary step in developing appropriate and effective interventions. We evaluated the diagnostic performance of various recommended international anthropometric cut-offs based on body mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR), triceps skinfold (TSF), and mid-upper arm circumference (MUAC) in predicting excess adiposity (body fat ≥ 25%) in a random sample of Trinidadian preschoolers.

Methods:

After obtaining written parental consent, weight, height, WC, TSF, and MUAC were measured in 596 children using standard procedures. These were used to calculate BMI for age, WHtR, TSF-for-age z-scores, and MUAC-for-age z-scores. Percentage body fat was measured using a Tanita-531 foot-to-foot bioelectrical impedance analyser (BIA). Sensitivities, specificities and area under the receiver-operating curve analysis and predictive values were then computed in reference to BIA estimates.

Results:

The prevalence of excess adiposity was 12.2% and 5.1% among males and females, respectively. Sensitivities for the various cut-offs ranged from 20.0% to 75.0% and 57.1% to 96.9% among males and females, respectively. WHO-BMI recommended cut-offs and those based on MUAC z-scores had significantly higher sensitivities in females than in males. TSF z-scores had significantly lower sensitivities compared to those based on BMI and WHtR among males. Similarly, specificities ranged from 81.3% to 99.9% and 79.8% to 99.9% among males and females, respectively. In girls, cut-offs based on TSF z-scores had a higher likelihood ratio than cut-offs from Centers for Disease Control, International Obesity Task Force and WHtR. Diagnostic performance was not associated with ethnicity.

Conclusion:

Our results suggest that diagnostic performance was associated with gender and the cut-offs used; however, it was not associated with ethnicity.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Pediatric Obesity Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Child, preschool / Female / Humans / Male Country/Region as subject: English Caribbean / Trinidad and Tobago Language: English Journal: West Indian med. j Journal subject: Medicine Year: 2021 Type: Article Affiliation country: Trinidad and Tobago Institution/Affiliation country: The University of the West Indies/TT

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Full text: Available Index: LILACS (Americas) Main subject: Pediatric Obesity Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Child, preschool / Female / Humans / Male Country/Region as subject: English Caribbean / Trinidad and Tobago Language: English Journal: West Indian med. j Journal subject: Medicine Year: 2021 Type: Article Affiliation country: Trinidad and Tobago Institution/Affiliation country: The University of the West Indies/TT