Prevention & lipidsCross-sectional study
Sleep duration and its association with adiposity markers in adolescence: a cross-sectional and longitudinal study
- Cross-sectional and longitudinal cohort study
- accelerometry-measured sleep
Authors' conclusion
Most adolescents did not meet sleep recommendations. Shorter sleep duration was independently associated with unfavourable adiposity markers, and such adverse impact was cumulative.
Study context
- Population
- Adolescents in the SI! Program for Secondary Schools trial, Spain, at ~12, 14 and 16 yearsat ~12 y
- Participants
- 1,216 adolescents
- Exposure
- Very short and short sleep vs recommended-time sleep
Main finding
As reported in the abstract
Overweight/obesity · ~12, 14 and 16 years
Each group vs RTSPrevalence ratio (95% CI)
SS~12 years
1.19(1.09–1.30)
SS~14 years
1.41(1.34–1.48)
SS~16 years
0.99(0.77–1.26)
VSS~12 years
1.30(1.28–1.32)
VSS~14 years
1.93(1.41–2.64)
VSS~16 years
1.32(1.26–1.37)
Observational data: associations, not effects.
Further findings
Meeting sleep recommendations
- At ~12 years
- 33.7%
- At ~14 years
- 22.6%
- At ~16 years
- 18.7%
Overweight/obesity by cumulative adherence to sleep recommendations
- Never or once meeting recommendations vs always meeting them: prevalence ~5 times higher
- ∼5
Waist-to-height ratio and fat mass index
- Similar trends for waist-to-height ratio
- P = 0.010
- Similar trends for fat mass index
- P = 0.024
Original publication
Sleep duration and its association with adiposity markers in adolescence: a cross-sectional and longitudinal study. Eur J Prev Cardiol. Published 4 May 2023. doi:10.1093/eurjpc/zwad137
Summarised from the published abstract; every number is checked against it