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

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.

Keywords


  1. Spencer EA, Appleby PN, Davey GK, Key TJ. Validity of self-reported height and weight in 4808 EPIC-Oxford participants. Public Health Nutr 2002; 5(4): 561-5.
  2. Stommel M, Schoenborn CA. Accuracy and usefulness of BMI measures based on self-reported weight and height: findings from the NHANES & NHIS 2001-2006. BMC Public Health 2009; 9: 421.
  3. Niedhammer I, Bugel I, Bonenfant S, Goldberg M, Leclerc A. Validity of self-reported weight and height in the French GAZEL cohort. Int J Obes Relat Metab Disord 2000; 24(9): 1111-8.
  4. Nyholm M, Gullberg B, Merlo J, Lundqvist-Persson C, Rastam L, Lindblad U. The validity of obesity based on self-reported weight and height: Implications for population studies. Obesity (Silver Spring) 2007; 15(1): 197-208.
  5. Larsen JK, Ouwens M, Engels RC, Eisinga R, van ST. Validity of self-reported weight and height and predictors of weight bias in female college students. Appetite 2008; 50(2-3): 386-9.
  6. Kuczmarski MF, Kuczmarski RJ, Najjar M. Effects of age on validity of self-reported height, weight, and body mass index: findings from the Third National Health and Nutrition Examination Survey, 1988-1994. J Am Diet Assoc 2001; 101(1): 28-34.
  7. Craig BM, Adams AK. Accuracy of body mass index categories based on self-reported height and weight among women in the United States. Matern Child Health J 2009; 13(4): 489-96.
  8. Lee DH, Shin A, Kim J, Yoo KY, Sung J. Validity of self-reported height and weight in a Korean population. J Epidemiol 2011; 21(1): 30-6.
  9. Avila-Funes JA, Gutierrez-Robledo LM, Ponce De Leon RS. Validity of height and weight self-report in Mexican adults: results from the national health and aging study. J Nutr Health Aging 2004; 8(5): 355-61.
  10. Khunti K, Taub N, Webb D, Srinivasan B, Stockman J, Griffin SJ, et al. Validity of self-assessed waist circumference in a multi-ethnic UK population. Diabet Med 2012; 29(3): 404-9.
  11. Rimm EB, Stampfer MJ, Colditz GA, Chute CG, Litin LB, Willett WC. Validity of self-reported waist and hip circumferences in men and women. Epidemiology 1990; 1(6): 466-73.
  12. Adibi P, Hassanzadeh Keshteli A, Esmaillzadeh A, Afshar H, Roohafza H, Bagherian-Sararoudi R, et al. The study on the epidemiology of psychological, alimentary health and nutrition (SEPAHAN): Overview of methodology. J Res Med 2012; 17(Spec 2): S291-S297.
  13. Connor GS, Tremblay M, Moher D, Gorber B. A comparison of direct vs. self-report measures for assessing height, weight and body mass index: a systematic review. Obes Rev 2007; 8(4): 307-26.
  14. Esmaillzadeh A, Mirmiran P, Azizi F. Evaluation of waist circumference to predict cardiova scular risk factors in an overweight Tehranian population: findings from Tehran Lipid and Glucose Study. Int J Vitam Nutr Res 2005; 75(5): 347-56.
  15. Azizi F, Khalili D, Aghajani H, Esteghamati A, Hosseinpanah F, Delavari A, et al. Appropriate waist circumference cut-off points among Iranian adults: the first report of the Iranian National Committee of Obesity. Arch Iran Med 2010; 13(3): 243-4.