Insomnia increases risk for cardiovascular events in women and in men with low socioeconomic status: A longitudinal, register-based study

Insomnia and short and long sleep durations have all been linked to cardiovascular disease. Male gender and low socioeconomic status are also related to cardiovascular disease, but it is unclear whether these two factors modify the impact of poor sleep on cardiovascular disease incidence. Participants (5875 men and 7742 women ages 45 to 64 with no history of cardiovascular disease from the general population of Malmö, Sweden; participation rate...