Limited evidence suggests that the association between sleep duration and cardiovascular events is strongest in individuals who also report sleep disturbances. We investigated sleep duration and insomnia symptoms in relation to incident cardiovascular events in the Swedish National March Cohort comprising 41,192 adults. Habitual sleep duration and difficulty falling asleep, difficulty maintaining sleep, early morning awakening, and nonrestorative sleep were self-reported in 1997. During 13.2 years of follow-up, we identified 4,031 events (myocardial infarction, stroke, heart failure, or death from cardiovascular disease) in the Swedish National Patient Register and the Cause of Death Register. After adjustment for potential confounders, short sleep duration (≤5 h) was associated with slightly increased risks of overall cardiovascular events and, specifically, myocardial infarction: hazard ratio, HR (95 % confidence interval) 1.24 (1.06-1.44) and 1.42 (1.15-1.76), respectively. These HRs were attenuated as we included BMI, depressive symptoms and other relevant covariates in our analysis. Insomnia symptoms per se were unrelated to risk. However, in a joint analysis, there was some evidence that short sleepers who reported frequent insomnia symptoms had the highest HRs (1.26-1.39) of overall cardiovascular events. Short sleep or insomnia symptoms without the other conferred no increased risk. Our results suggest that symptoms of sleep disturbance should be taken into account when assessing the association between short sleep and cardiovascular disease. © 2013 Springer Science+Business Media Dordrecht.

Westerlund, A., Bellocco, R., Sundström, J., Adami, H., Åkerstedt, T., Trolle Lagerros, Y. (2014). Sleep characteristics and cardiovascular events in a large Swedish cohort. EUROPEAN JOURNAL OF EPIDEMIOLOGY, 28(6), 463-473 [10.1007/s10654-013-9802-2].

Sleep characteristics and cardiovascular events in a large Swedish cohort

BELLOCCO, RINO
Secondo
;
2014

Abstract

Limited evidence suggests that the association between sleep duration and cardiovascular events is strongest in individuals who also report sleep disturbances. We investigated sleep duration and insomnia symptoms in relation to incident cardiovascular events in the Swedish National March Cohort comprising 41,192 adults. Habitual sleep duration and difficulty falling asleep, difficulty maintaining sleep, early morning awakening, and nonrestorative sleep were self-reported in 1997. During 13.2 years of follow-up, we identified 4,031 events (myocardial infarction, stroke, heart failure, or death from cardiovascular disease) in the Swedish National Patient Register and the Cause of Death Register. After adjustment for potential confounders, short sleep duration (≤5 h) was associated with slightly increased risks of overall cardiovascular events and, specifically, myocardial infarction: hazard ratio, HR (95 % confidence interval) 1.24 (1.06-1.44) and 1.42 (1.15-1.76), respectively. These HRs were attenuated as we included BMI, depressive symptoms and other relevant covariates in our analysis. Insomnia symptoms per se were unrelated to risk. However, in a joint analysis, there was some evidence that short sleepers who reported frequent insomnia symptoms had the highest HRs (1.26-1.39) of overall cardiovascular events. Short sleep or insomnia symptoms without the other conferred no increased risk. Our results suggest that symptoms of sleep disturbance should be taken into account when assessing the association between short sleep and cardiovascular disease. © 2013 Springer Science+Business Media Dordrecht.
Articolo in rivista - Articolo scientifico
Cardiovascular diseases; Cohort studies; Epidemiology; Life style; Sleep disorders; Adolescent; Adult; Aged; Aged, 80 and over; Cardiovascular Diseases; Confidence Intervals; Female; Follow-Up Studies; Humans; Incidence; Life Style; Male; Middle Aged; Proportional Hazards Models; Prospective Studies; Registries; Risk Factors; Self Report; Sleep; Sleep Initiation and Maintenance Disorders; Surveys and Questionnaires; Sweden; Young Adult; Epidemiology
English
2014
28
6
463
473
none
Westerlund, A., Bellocco, R., Sundström, J., Adami, H., Åkerstedt, T., Trolle Lagerros, Y. (2014). Sleep characteristics and cardiovascular events in a large Swedish cohort. EUROPEAN JOURNAL OF EPIDEMIOLOGY, 28(6), 463-473 [10.1007/s10654-013-9802-2].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/103576
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