The relationship between knowledge, self-efficacy and quality of life with glycemic control and lipid profile in smoking diabetic patients

Introduction: Based on world health organization definition, quality of life is each individual's perception from his or her life position with respect to cultural and social situation. This study is aimed to investigate the relation between knowledge, self-efficacy and quality of life with glycemic control and lipid profile in smoking diabetic patients. Methods: This cross sectional study was carried out in Bandar Abbas Diabetic Clinic within three months. 125 patients suffering from diabetes type II were included in study via census. All the cases had suffered from the disease for more than a year and were not hospitalized for the last three months. WHOQOL BREF-26 questionnaire, self-efficacy standard questionnaire and knowledge standard questionnaire, developed for diabetic patients, were used in this study. We measured the level of HbA1c by calorimetric, LDL and triglyceride by standard kits, total cholesterol and HDL by enzymatic methods. Data analysis was done by SPSS 12 software. T-test and Mann-Whitney test was used for statistical analysis. Results: The mean level of knowledge in smoking patients is less than non-smoking and is significant. The quality of life (QOL) in smoking patients is less than non-smoking patients and is significant (P<0.01). Concentration ability in smokers is less than non-smokers (P<0.04). Negative feelings like sadness, anxiety and depression in smokers are more prevalent than non-smokers (P<0.05). Positive correlation was seen between physical dimension and knowledge in control group, between psychological dimension and knowledge, total QOL and knowledge in both groups. Conclusion: Although questionnaires of QOL and knowledge-developed in this study, could specify the differences between smoking and non-smoking diabetic patients in a prefect way, comparing laboratorial findings could not reveal any differences between them. Considering the above mentioned, it is recommended to make an educational intervention to improve the knowledge of smoking diabetic patients.