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Year : 2017  |  Volume : 18  |  Issue : 2  |  Page : 39-45

Relationship between sleep quality and glycaemic control among subjects with type 2 diabetes mellitus

1 Junior Lecturer, College of Nursing, CMC, Vellore, India
2 Retd.. Professor, College of Nursing, CMC, Vellore, India
3 Professor, College of Nursing, CMC, Vellore, India
4 Associate Professor, Dept of Endocrinology, CMC, Vellore, India
5 Professor, Biostatistics, CMC, Vellore, India

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Source of Support: None, Conflict of Interest: None

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Sleep disturbance has evolved as an unrecognised health issue among the Diabetic patients. Information on sleep quality in Type 2 Diabetes in relation to the glycaemic control is limited and is rarely explored. This study was designed to assess the relationship between sleep quality and glycaemic control among subjects with Type 2 Diabetes Mellitus attending the Endocrinology Outpatient Department of a tertiary care centre in South India. A non-experimental descriptive design was undertaken. A total of 500 Type 2 Diabetic subjects (male- 242, female-258) aged between 20-70 years were selected based on total enumeration sampling technique. Sleep quality was assessed using Pittsburgh Sleep Quality Index (PSQI) and glycaemic control was estimated using HbA1c levels obtained within the past six months. Descriptive and inferential non parametric statistics such as frequency distributions, median, range, Spearman rank’s correlation, Mann Whitney U test, Kruskal Wallis test, and Chi square tests were used to analyse the data. Among the subjects 63.6% had poor sleep quality (PSQI >5) and 74.6% of them had poor glycaemic control (HbA1c >7%). The median HbA1c of poor quality sleepers was 8.25% in comparison with good quality sleepers (Median HbA1c-7.80 %). Low positive correlation existed between sleep quality and glycemic control (rs= .09, p=.036). Majority of Type 2 Diabetics have poor sleep quality and poor glycaemic control. Progressive increase in HbA1c existed as the sleep quality worsened. This warrants further exploration into the details of the relationship between sleep quality and glycaemic control.

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