Document Type : Original Article


1 Department of Health Education and Promotion, School of Public Health, Tehran University of Medical Sciences,

2 Department of Nursing, School of Medicine, Tarbiat Modaress University,

3 Tehran University of Medical Sciences, Tehran, Iran


Introduction: Considering the chronic nature of diabetes and its significant effect on
quality of life of patients, the present study was conducted to evaluate predictors of
quality of life in these patients in order to facilitate planning health promotion intervention
programs. Materials and Methods: The present study was designed as a cross-sectional
study on 140 type 2 diabetic patients of Om-ol-Banin Diabetes Center of Isfahan. Data
collection tool was a multidimensional questionnaire including demographic and disease
related data (12 items), the standard scale for diabetes distress (17 items), the standard
scale for self-efficacy in diabetic patients (8 items), and standard scale for specific
quality of life of diabetic patients (15 items). Collected data were evaluated by SPSS
version 11.5 using the Chi-square test, Independent T-test, ANOVA, Pearson correlation
and multivariate regression analysis. Results: Results showed that the quality of life of
diabetic patients had a statistically significant correlation with diabetes distress variable
(P < 0.001) and self-efficacy variable (P < 0.001). In this study R2
 (predictive power) was
0.66. Multivariate regression model indicated diabetes distress (b = -0.277, P = 0.01) and
self-efficacy (b = -0.161, P < 0.001) as variables influencing adjusted self-management for
other variables. Conclusion: The result of the present study urges that in planning health
promotion interventions in the field of diabetes, more attention be paid to self-efficacy
and diabetes distress variables in order to improve the efficiency and effectiveness of the
interventions carried out.


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