Effect of sleep duration and quality in the severity of type 2 diabetes mellitus in Indians

Sadanand C. D., Madhuvan H. S., Ravishankar S. N., Thimmareddy S. R.


Background: Rapid urbanization has caused increase in the incidence of Diabetes and Sleep debt. This study is intended to see any correlation between Diabetes and sleep quality.

Methods: Diabetes subjects who had there HbA1c done in the past three months were enrolled and their sleep was studied using Pittsburg sleep quality index (PSQI) which is simple, reliable epidemiological tool with high sensitivity and specificity. Subjects with chronic pain were excluded.

Results: The mean PSQI score of males was more than that of female which was statistically insignificant. Urban diabetes subjects had a higher PSQI score than rural subjects. Pearson correlation (r) was 0.22 for HbA1c and PSQI score which was statistically significant with p=0.04.  Though the subjects with less than 5 hours of sleep had a higher HbA1c compared to those with more than 5 hours of sleep this was statistically insignificant.

Conclusions: This study showed positive correlation between sleep quality and Diabetes.


Diabetes, Pittsburg sleep quality index, Sleep duration, Sleep quality

Full Text:



WHO. Urbanization and health. Bulletin of the WHO. 2010;88:241-320. Available at: Accessed 12 March 2014.

Spiegel K, Leproult R, Van Cauter E. Impact of sleep debt on metabolic and endocrine function. Lancet. 1999;354(9188):1435-9.

Spiegel K, Knutson K, Leproult R, Tasali E, Cauter EV. Sleep loss: a novel risk factor for insulin resistance and type 2 diabetes. J Appl Physiol. 2005;99(5):2008-19.

Leproult R, Holmback U, Van Cauter E. Marked decrease in insulin sensitivity following one week of partial sleep deprivation with or without circadian misalignment. Diabetes. 2006;55(suppl 1):A323-4.

Buysse DJ, Reynolds CF 3rd, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Res. 1989;28(2):193-213.

Nathan DM1, Kuenen J, Borg R, Zheng H, Schoenfeld D, Heine RJ. A1c-Derived Average Glucose Study Group. Translating the A1C assay into estimated average glucose values. Diabetes Care. 2008;31(8):1473-8.

American Diabetes Association. Clinical practice recommendations 2013. Diabetes Care. 2013;36(Suppl 1):S1-110.

Tsai YW, Kann NH, Tung TH, Chao YJ, Lin CJ, Chang KC, et al. Impact of subjective sleep quality on glycemic control in type 2 diabetes mellitus. Fam Pract. 2012;29(1):30-5.

Knutson KL, Ryden AM, Mander BA, Van Cauter E. Role of sleep duration and quality in the risk and severity of type 2 Diabetes mellitus. Arch Intern Med. 2006;166(16):1768-74.

Ayas NT, White DP, Al-Delaimy WK, Manson JE, Stampfer MJ, Speizer FE et al. A prospective study of self-reported sleep duration and incident diabetes in women. Diabetes Care. 2003;26(2):380-4.