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Determinants of Lifestyle Behavior in Iranian Adults With Prediabetes: Applying the Theory of Planned Behavior Pubmed



Rahmatinajarkolaei F1 ; Pakpour AH2, 3 ; Saffari M1, 4 ; Hosseini MS5 ; Hajizadeh F6 ; Chen H7 ; Yekanineja MS8
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Authors Affiliations
  1. 1. Health Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
  2. 2. Social Determinants of Health Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
  3. 3. Department of Nursing, School of Health and Welfare, Jonkoping University, Jonkoping, Sweden
  4. 4. Department of Health Education, Baqiyatallah University of Medical Sciences, Tehran, Iran
  5. 5. Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
  6. 6. Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
  7. 7. School of Life Sciences, Faculty of Science, University of Technology Sydney, NSW, Australia
  8. 8. Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Source: Archives of Iranian Medicine Published:2017


Abstract

OBJECTIVE: Prediabetic condition can lead to development of type 2 diabetes, especially in individuals who do not adhere to a healthy lifestyle. The aim of the present study was to investigate the socio-cognitive factors using the Theory of Planned Behavior (TPB) that may be associated with the choice of lifestyle in prediabetic patients. METHODS: A prospective study with one-month follow up was designed to collect data from 350 individuals with prediabetic conditions. A questionnaire was used to collect the information, including demographic variables, exercise behavior, food consumption, as well as the constructs of the TPB (attitude, subjective norms, perceived behavioral control, and behavioral intention) regarding physical activity and dietary choice. The correlations between TPB variables and the dependent variables (dietary choice, physical activity) were assessed using Spearman correlation and multiple regression models. RESULT: In total, 303 people participated. The mean age of the participants was 53.0 (SD 11.5) years and 42% were males. Significant correlations were found between all TPB constructs and both dependent variables (healthy eating and exercise behaviors) both at baseline and after one month (P < 0.01). The predictive validity of the TPB over time was proved for both dependent variables where past and future behaviors were significantly correlated with the constructs. Nearly 87% of the variance in exercise behavior and 72% of the variance in healthy eating behavior were explainable by TPB constructs. CONCLUSION: The TPB may be a useful model to predict behaviors of physical activity and dietary choice among prediabetic people. Therefore, it may be used to monitor lifestyle modification to prevent development of diabetes among people with prediabetic conditions. © 2017, Academy of Medical Sciences of I.R. Iran. All rights reserved.
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