Type 2 & other diabetes

Association Between Accelerometer-Measured Irregular Sleep Duration and Type 2 Diabetes Risk: A Prospective Cohort Study in the UK Biobank

Diabetes CarePublished Prospective cohort study

Authors' conclusion

Irregular sleep duration was associated with higher diabetes risk, particularly in individuals with a lower diabetes PRS and longer sleep duration.

Study context

Population
UK Biobank participants free of diabetes when providing accelerometer data in 2013–2015 (mean age 62 years), followed until May 2022
Participants
84,421 participants
Exposure
Categories of 7-night accelerometer-measured sleep duration SD
Outcome
Incident diabetes (medical records, death register and/or self-reported diagnosis)
Follow-up
7 years
Methodological detailsUK Biobank, accelerometer-measured sleep
  • UK Biobank
  • Accelerometer-measured sleep

Main finding

As reported in the abstract

Incident diabetes
Adjusted for age, sex, and race
Each group vs ≤30 minHazard ratio (95% CI)
31-45 min
1.15(0.99–1.33)
46-60 min
1.28(1.10–1.48)
61-90 min
1.54(1.32–1.80)
≥91 min
1.59(1.33–1.90)
Incident diabetes cases
2,058
Person-years of follow-up
622,080

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)
Sleep duration SD >60vs ≤60 min, further adjusted for lifestyle, comorbidities, environmental factors and adiposityAssociation attenuated1.11 (1.01–1.22)
OutcomeHigher diabetes risk (95% CI)P value
Nonlinear relationship; sleep duration SD >60 vs ≤60 minAdjusted for age, sex, and race34% (1.22–1.47)P nonlinearity 0.0002

Effect modification

Stronger association with lower diabetes polygenic risk score (PRS) (P interaction ≤ 0.0264)
Stronger association with longer sleep duration (P interaction ≤ 0.0009)

Original publication

Association Between Accelerometer-Measured Irregular Sleep Duration and Type 2 Diabetes Risk: A Prospective Cohort Study in the UK Biobank. Diabetes Care. Published 17 July 2024. doi:10.2337/dc24-0213

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