Circulation Population Health and Outcomes
Irregular sleep linked to higher cardiovascular risk
Each 29-minute increase in night-to-night sleep-duration variability was linked to higher cardiovascular risk, with a hazard ratio (a relative risk measure) of 1.24.Each 29-minute increase in night-to-night sleep-duration variability was linked to higher cardiovascular risk, with a hazard ratio (a relative risk measure) of 1.24.
Cohort · 10,362 peoplePopulations
Who was studied10,362 US adults, median 3.7 years
What changedCardiovascular risk was higher with each 29-minute increase in night-to-night sleep duration variability (hazard ratio, 1.24)
The catchEarly cardiovascular disease can disrupt sleep, so the order may be reversed