Objectively Measured Sleep Disorders in Rheumatoid Arthritis and Their Association With Disease Activity
Authors' conclusion
Objectively measured sleep problems were frequent and associated with RA disease activity.
Study context
- Population
- Individuals with rheumatoid arthritis (RA)116 analysed at baseline
- Participants
- 133 individuals
- Outcome
- Actigraphy sleep variables: sleep efficiency, wake after sleep onset (WASO) and total sleep time; association with RA disease activity
Methodological detailslongitudinal, four measurement periods at 6-month intervals, actigraphy, WatchPAT
- Longitudinal
- Four measurement periods at 6-month intervals
- Actigraphy
- WatchPAT
Main finding
As reported in the abstract
Prevalence of objectively measured sleep problems
- Poor sleep efficiency (<85%) at all measurement periods completed
- More than 40%
- Moderate to severe obstructive sleep apnea (OSA) (AHI ≥ 15) among those with WatchPAT assessments
- More than half
Observational data: associations, not effects.
Further findings
AHI and disease activity · baseline
- AHI associated with CDAI and DAS-CRP
- 63 completed WatchPAT monitoring
Original publication
Objectively Measured Sleep Disorders in Rheumatoid Arthritis and Their Association With Disease Activity. Arthritis Care Res (Hoboken). Published 16 January 2026. doi:10.
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