Association between sleep duration and obesity in patients with type 2 diabetes: A longitudinal study
Authors' conclusion
Short sleep duration is associated with higher adiposity measures (BMI and waist circumference) and weight gain in patients with T2D. Addressing sleep duration may reduce the burden of obesity in T2D, and future studies in this area are warranted.
Study context
- Population
- Adults with T2D in the SLEEP T2D study, 13 UK NHS Trusts; 61% male, mean age 61.2 (±11.7) years, 63.7% with body mass index (BMI) ≥30 kg/m²
- Participants
- 229 adults
- Exposure
- Short or long vs normal sleep duration
- Outcome
- Association between self-reported sleep duration (Pittsburgh Sleep Quality Index (PSQI)) and adiposity (BMI and waist circumference)
Methodological detailsmulticentre
- Multicentre
Main finding
As reported in the abstract
baseline
Correlation of sleep duration with BMI (p < 0.001)
r = −0.27
Correlation of sleep duration with waist circumference (p = 0.001)
r = −0.25
Short sleep associated with higher BMI, adjusted for confounders (p = 0.006)
β = −1.01
Short sleep associated with higher waist circumference, adjusted for confounders (p = 0.01)
β = −1.91
Observational data: associations, not effects.
Further findings
| Outcome | aOR (95% CI) | P value | |
|---|---|---|---|
| ≥5% gain in BMI · median follow-up 26.5 monthsShortvs NormalShort sleep at baseline | 10.03 (1.55–64.84) | P = 0.01 | |
| 0.050.21520Adjusted odds ratio (log scale) |
Original publication
Association between sleep duration and obesity in patients with type 2 diabetes: A longitudinal study. Diabet Med. Published 17 April 2025. doi:10.
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