Association of sleep fragmentation with general and abdominal obesity: a population-based longitudinal study
Authors' conclusion
Fragmented sleep is independently associated with an increased risk of both general and abdominal obesity. The result highlights SF as a modifiable risk factor for the prevention and treatment of obesity.
Study context
- Population
- Free-living young adults (mean age 18.7 years, SD 0.9; 139 [35.7%] male); Sleep fragmentation (SF) assessed by ActiGraph accelerometers for 7 consecutive days
- Outcome
- Association of baseline SFI (per 1-unit increase) with obesity measures
- Follow-up
- 1-year follow-up
Main finding
As reported in the abstract
- Body mass index (BMI) increase per 1-unit sleep fragmentation index (SFI) increase
- 0.08 kg/m² (95% CI: 0.03, 0.14)
- Percentage of body fat increase per 1-unit SFI increase
- 0.20% (95% CI: 0.07, 0.32)
- Fat mass increase per 1-unit SFI increase
- 0.15 kg (95% CI: 0.03, 0.27)
- Waist circumference increase per 1-unit SFI increase
- 0.15 cm (95% CI: 0.03, 0.26)
- Visceral fat area increase per 1-unit SFI increase
- 0.91 cm² (95% CI: 0.36, 1.46)
- General obesity risk per 1-unit SFI increase: OR
- 1.15 (95% CI = 1.04-1.28; p = 0.006)
- Abdominal obesity risk per 1-unit SFI increase: OR
- 1.07 (95% CI = 1.01-1.13; p = 0.021)
Observational data: associations, not effects.
Original publication
Association of sleep fragmentation with general and abdominal obesity: a population-based longitudinal study. Int J Obes (Lond). Published 28 May 2024. doi:10.
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