Accelerometer-derived sleep metrics in mild and difficult-to-treat asthma

Varun Sharma*, Helen Clare Ricketts, Femke Steffensen, Anna Goodfellow, Duncan S. Buchan, Douglas C. Cowan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Introduction
Poor sleep health is associated with increased asthma morbidity and mortality. Accelerometers have been validated to assess sleep parameters though studies using this method in patients with asthma are sparse and none have compared mild to difficult-to-treat asthma populations.

Methods
We performed a retrospective analysis from two recent in-house trials comparing sleep metrics between patients with mild and difficult-to-treat asthma. Participants wore accelerometers for 24-hours/day for seven days.

Results
Of 124 participants (44 mild, 80 difficult-to-treat), no between-group differences were observed in sleep-window, sleep-time, sleep efficiency or wake time. Sleep-onset time was ~ 40 min later in the difficult-to-treat group (p = 0.019).

Discussion
Broadly, we observed no difference in accelerometer-derived sleep-metrics between mild and difficult-to-treat asthma. This is the largest analysis of accelerometer-derived sleep parameters in asthma and the first comparing groups by asthma severity. Sleep-onset initiation may be delayed in difficult-to-treat asthma but a dedicated study is needed to confirm.
Original languageEnglish
Article number5
Number of pages4
JournalAllergy, Asthma & Clinical Immunology
Volume20
DOIs
Publication statusPublished - 14 Jan 2024

Keywords

  • accelerometers
  • asthma
  • difficulty asthma
  • severe asthma
  • sleep medicine

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