Document Type : Original Article (s)
Authors
1
Food Security Research Center AND Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
2
PhD Candidate, Food Security Research Center AND Students Research Committee, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
3
General Practitioner, Integrative Functional Gastroenterology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
4
Professor, Food Security Research Center AND Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
5
Professor, Integrative Functional Gastroenterology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
Abstract
Background: Scarce data are available on validity of self-reported anthropometric indices in Iran. This cross-sectional study aimed to determine the validity of self-reported anthropometric indices in comparison with the same variables measured by technicians in a subgroup of the staff of the Isfahan University of Medical Sciences (IUMS), Isfahan, Iran.Methods: In the current study, 200 staff of Isfahan University of Medical Sciences were selected via convenience non-random sampling method. Weight, height, and waist and hip circumferences were questioned by the first technician. The same measures were taken three times by a trained technician according to standard protocols. Mean of three measurements were considered in statistical analysis.Findings: Weight (P = 0.040) and waist circumference (P < 0.001) measures were significantly lower in self-reported values compared to those that measured by the technician. Pearson correlation test between the measured and self-reported anthropometric indices ranged from 0.60 for hip circumference to 0.95 for weight. The highest agreement between the two series of values was observed for normal weight (73%) and overweight and obesity (91%). Overall, 87% of central obesity measured by the technician, was confirmed by self-reported measures. While, less than 13% of people with no abdominal obesity, according to the technician measures, were categorized as abdominally obese by self-reported values.Conclusion: These results indicate that self-reported anthropometric indices are highly accurate among this Iranian population, and are, therefore, appropriate for epidemiologic studies.
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