Why the study?
Does short or long sleep duration increase the risk of coronary events in women without baseline CHD?
Does short or long sleep duration increase the risk of coronary events in women without baseline CHD?
Both short (≤5 hours) and long (≥9 hours) sleep durations are independently associated with a modestly increased risk of coronary events in women.
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Short and long sleep durations were associated with higher CHD risk in women; hypothesis-generating, with causality and interventions unproven.
Ayas et al. (2003) studied this question.
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