The incidence of IDDM is increasing in the world.In regard to increasing prevalence of IDDM and probable introduction between IDDM and sleep quality, it was designed this study to evaluate the sleep quality in adolescents.

This case-control study was done IN Isfahan Behavioral Sciences Research Center and Endocrine Research Center . The 120 cases were selected from adolescents (11-18 year old) with IDDM referral to Isfahan Endocrine Research Center. Control group were 120 and matched with cases. The criteria for diagnosing diabetes were Classification and Diagnose Committee Criteria. PSQI was used to evaluate the quality of sleep. Data was and analyzed it with t-test, Pierson coefficient and ANOVA.

The mean age in cases and controls was 14.5±2.2 and 14.3±2.3. 46.7% of cases had family history of diabetes, whereas, it was 5.8% in controls. The mean of FBS in cases was 159±68 mg/dl. The mean of HbA1c was 8.8±1.99. 75.8% of diabetic adolescents were PSQI score over 5 (cases=7.3±2.3 & controls=5.7±2.6. p<0.001). Some sleep disturbances: sleep onset latency, poor sleep efficiency and daytime dysfunction are significantly more in diabetic adolescents than controls. There is not any relation between PSQI and BMI. But there was a direct relation between PSQI and HbA1c by regression analysis.

There is poor sleep in adolescents with IDDM. IDDM causes sleep disturbances probably by some different ways. So, it is very important to consider the quality of sleep in IDDM and manage probable sleep problem.