after acute coronary syndrome
(ACS) is associated with worsened patient outcomes and financial burden. Short sleep
duration is a risk factor for cardiovascular events and may therefore represent a behavioral factor that increases risk of adverse posthospitalization outcomes. This study examined whether short sleep
duration in the month after hospital evaluation for ACS is associated with 6-month all-cause emergency department (ED) and hospital readmission
The current analyses entail a secondary analysis of a larger prospective observational cohort study. Sleep
duration during the month after hospital evaluation for ACS was assessed subjectively and dichotomized as short (<6 hours) or not short (≥6 hours). A Cox proportional hazards model was used to assess the association between short sleep
duration during the month after ACS hospital evaluation and 6-month all-cause ED/hospital readmission
A total of 576 participants with complete data were included in analyses. Approximately 34% of participants reported short sleep
duration during the month after ACS evaluation. Short sleep
duration was significantly associated with 6-month all-cause ED/hospital readmission
(hazard ratio = 2.03; 95% confidence interval = 1.12–3.66) in the model adjusted for age, sex, race/ethnicity, clinical severity, cardiac and renal markers, depression, acute stress, and including a sleep
duration by ACS status interaction.
duration after ACS hospital evaluation is prevalent and is associated with increased risk of all-cause readmission
within 6 months of discharge. Current findings suggest that short sleep
duration is an important modifiable behavioral factor to consider after hospital evaluation for ACS.