[Association between the quality of sleep and the occurrence of diabetes among people with impaired glucose regulation].

Objective: To understand the association between people under impaired glucose regulation (IGR) with poor quality of sleep and the occurrence of diabetes.

Methods: Based on a cohort of 1136 persons with IGR, the present study would include information on the duration of sleep and severity of insomnia. The cohort was followed for two years and the outcomes of impaired glucose regulation were summarized. Poisson regression was employed to analyze the relationship between the quality of sleep and the occurrence of diabetes.

Results: After the confounders were adjusted, when compared with 7 - 9 h sleep duration, the less than 7 h sleep duration showed a RR value of 1.77 (P < 0.001) while more than 9 h sleep duration had a RR value of 1.45 (P = 0.067). When compared data from people having less than 14 scores of the Insomnia Severity Index (ISI), those people with more than 14 scores had a RR value of 1.58 (P < 0.001).

Conclusion: Causal relationship between the quality of sleep and the occurrence of diabetes did exist among the IGR population while the poor quality of sleep might increase the risk of diabetes at the end of the two-year following-up program.