Dataset Information

Assessing the accuracy of two proxy measures for BMI in a semi-rural, low-resource setting in Guatemala.

ABSTRACT:

Background

Validation studies of self-reported BMI are limited to populations in high-income countries or urban settings. Here, we assess the accuracy of two proxy measures of measured height, weight and BMI - self-reported values and the Stunkard figure scale - in a semi-rural population in Guatemala.

Methods

Self-reported values and Stunkard figure selection were elicited prior to biometric measurements from a total of 175 non-pregnant women recruited based on a stratified random sample of households, with 92 women providing full data for validation across measures.

Results

86.3% of participants self-reported weight and 62.3% height. Among those responding, self-reported weight is highly accurate though lower relationships for height contribute to error in reported BMI. The Stunkard scale has a higher response rate (97.1%) and while less accurate in predicting BMI values, more accurately predicts BMI categories.

Conclusions

Self-reported measures are more accurate than the Stunkard scale in estimating BMI values, while the latter is more accurate in estimating BMI categories. High non-response rates and lower correlations between reported and measured height caution against using self-reported biometric data other than raw weight in low-resource settings.

SUBMITTER: Maupin JN

PROVIDER: S-EPMC4190281 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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Publications

Assessing the accuracy of two proxy measures for BMI in a semi-rural, low-resource setting in Guatemala.

Maupin Jonathan N JN Hruschka Daniel J DJ

BMC public health 20140919

<h4>Background</h4>Validation studies of self-reported BMI are limited to populations in high-income countries or urban settings. Here, we assess the accuracy of two proxy measures of measured height, weight and BMI - self-reported values and the Stunkard figure scale - in a semi-rural population in Guatemala.<h4>Methods</h4>Self-reported values and Stunkard figure selection were elicited prior to biometric measurements from a total of 175 non-pregnant women recruited based on a stratified rando ...[more]

PMID: 25238737

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Project description:BackgroundMid-Upper Arm Circumference (MUAC) is an independent anthropometric measurement used to identify malnutrition in children. While much research has been dedicated to applying fixed estimates of MUAC to identify cases of malnutrition in children under 5?years of age, far less has been done with age-specific MUAC Z-score values across the continuum of age from birth through adolescence.MethodsThe present study examined the effectiveness of a novel MUAC Z-score tape, in the hands of community health volunteers, to identify children over the age of 5 who would benefit from nutritional rehabilitation. In January of 2019, 112 community health volunteers working within Children International in Guatemala were trained to use the MUAC Z-score tape and asked to collect measurements on children or youth in their communities.ResultsOf the 818 MUAC Z-score tape measurements obtained by volunteers, 88.26% (722/818) were concordant with nutritional risk status as predicted by BMI Z-score, and 90.95% (744/818) were concordant with MUAC Z-score tape measurements made by field medical staff. MUAC Z-scores identified 87.10% (27/31) of the severely or moderately undernourished children as determined by the BMI Z-score who would be candidates for the nutrition rehabilitation program (Z-score???-?2) along with an additional six children that would not have been classified as such with BMI Z-score. A qualitative survey distributed to the volunteers showed moderate rates of understanding of nutritional risk using the tape, and 62.50% reported the tape was easy to use.ConclusionsThese quantitative and qualitative findings suggest that with more in-depth training and education the MUAC Z-score tape is a viable, low-cost, low-burden alternative for community-level nutritional status assessment among the population served by Children International in Guatemala.Supplementary informationSupplementary information accompanies this paper at (10.1186/s13690-019-0370-0).

Dataset Information

Assessing the accuracy of two proxy measures for BMI in a semi-rural, low-resource setting in Guatemala.

Background

Methods

Results

Conclusions

Publications

Assessing the accuracy of two proxy measures for BMI in a semi-rural, low-resource setting in Guatemala.

Similar Datasets

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