Key result
Poorer sleep hygiene is linked to ~3% higher insomnia odds per point in CAD outpatients.
Why the study?
The association between insomnia and sleep hygiene in outpatients with coronary artery disease was unclear.
Cross-Sectional (n=227)
Yes
Nearly half of outpatients with coronary artery disease experience insomnia, which is associated with poor sleep hygiene, recent disease onset, and chest symptoms.
Association supports sleep hygiene assessment in CAD outpatients; hypothesis-generating and requires prospective validation before practice change.
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Taira et al. (2026) conducted a cross-sectional in Coronary Artery Disease (n=227). Poor sleep hygiene vs. Good sleep hygiene was evaluated on Insomnia (PSQI score ≥ 6) (OR 1.028, 95% CI 1.003-1.052, p=0.025). Poor sleep hygiene was significantly associated with insomnia in outpatients with coronary artery disease, with an odds ratio of 1.028 per 1-point increase in the Sleep Hygiene Practices Scale score.
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