- This meta-analysis found a high prevalence of insomnia and symptoms of insomnia in patients with type 2 diabetes (T2D), which may be associated with deleterious glycaemic control.
Why this matters
- Findings suggest that efforts towards educating patients with T2D about the importance of sleep could be the first strategy to improve glycaemic control.
- Meta-analysis of 78 studies assessed the prevalence of insomnia symptoms and its association with metabolic parameters or glycaemic control in patients with T2D.
- Funding: None disclosed.
- The prevalence of insomnia and insomnia symptoms was 39% in patients with T2D (95% CI, 34-44%; I2=100%; P<.00001>
- Prevalence was higher in the Asian population compared with the European/American population (49% vs 40%).
- Patients with T2D with insomnia vs those without insomnia had higher:
- HbA1c levels (mean difference [MD], 0.23%; 95% CI, 0.1-0.4%; I2=76%; P<.00001 risk ratio ci i>2=73%; P=.001),
- fasting glucose levels (MD, 0.40 [95% CI, 0.2-0.7] mmol/L; I2=57%; P=.01),
- body mass index (MD, 0.38 [95% CI, 0.1-0.7] kg/m2; I2=47%; P=.03) and
- total cholesterol levels (MD, 0.15 [95% CI, 0.03-0.3] mmol/L; P=.43).
- High heterogeneity across studies.