Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Socio-Demographic Correlates of Diabetes Self-Reporting Validity: A Study on the Adult Kurdish Population Publisher Pubmed



Moradpour F1 ; Piri N2 ; Dehghanbanadaki H3 ; Moradi G1, 4 ; Fotoukkiai M5 ; Moradi Y1, 4
Authors
Show Affiliations
Authors Affiliations
  1. 1. Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
  2. 2. Health Network of Dehgolan, Kurdistan University of Medical Sciences, Sanandaj, Iran
  3. 3. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Epidemiology and Biostatistics, Faculty of Medicine, School of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
  5. 5. Endocrinology & Metabolism, Department of Internal Medicine, School of Medicine, Tohid Hospital, Kurdistan University of Medical Sciences, Sanandaj, Iran

Source: BMC Endocrine Disorders Published:2022


Abstract

Background: In this research, data of the DehPCS study were used to assess the validity of self-reported diabetes based on the reference criteria, including the history of taking oral anti-diabetic drugs, insulin injection, or high fasting blood sugar. Methods: A cross-sectional analytical study was performed on 4400 participants of the DehPCS study, aged 35–70 years. The reference criteria were oral hypoglycemic drug consumption, insulin injection, and/ or fasting blood sugar ≥126 (mg/dl). The self-reporting diabetes was investigated by well-trained interviewers before the diabetes diagnosis based on the reference criteria. The validity of self-reporting diabetes was assessed using sensitivity, specificity, as well as positive and negative predictive values. Socio-demographic correlates of self-reported agreement were examined by multinomial logistic regression. Results: Three thousand nine hundred ninety-six people participated in this study, and the participation rate was equal to 90.8%. The diabetes prevalence among the study population was 13.1% based on self-reports and 9.7% based on the reference criteria. Five hundred twenty-three participants reported diabetes, 213 (41.28%) of whom did not have it. We found a good agreement of 92.3% with an acceptable kappa value of 65.1% between self-reporting diabetes and the reference criteria. Diabetes self-reporting also guaranteed sensitivity of 78.5%, specificity of 93.9%, as well as the positive and negative predictive values of 58.7% and of 98.0%, respectively. Being female, the higher economic class, the higher body mass index (BMI), and the positive family history of diabetes increased the chance of false positive. Being male, older ages and the moderate economic class increased the chance of false positive. Conclusion: Self-reporting diabetes is identified as a relatively valid tool which could fairly determine the diabetes prevalence in epidemiological studies. It should be noted that its validity is influenced by some socio-demographic characteristics. © 2022, The Author(s).