Validation Study of Self-Reported Anthropometric Indices Among the Staff of the Isfahan University of Medical Sciences, Isfahan, Iran



Aminianfar S¹ ; Saneei P² ; Nouri M¹ ; Shafiei R¹ ; Hassanzadehkeshteli A^{3, 5} ; Esmaillzadeh A⁴ ; Adibi P^{3, 5}
Source: Journal of Isfahan Medical School Published:2015

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. © 2015, Isfahan University of Medical Sciences(IUMS). All rights reserved.