Prospective study of sleep duration, snoring and risk of heart failure

Author:

Zhuang Sheng,Huang Shue,Huang Zhe,Zhang Shun,Al-Shaar Laila,Chen Shuohua,Wu ShoulingORCID,Gao XiangORCID

Abstract

ObjectiveTo investigate whether nighttime sleep duration and snoring status were associated with incident heart failure (HF).MethodsA prospective study was conducted based on Kailuan cohort including 93 613 adults free of pre-existing cardiovascular diseases. Sleep duration and snoring status were assessed by self-reported questionnaire. Incident HF cases were ascertained by medical records. Cox proportional hazards model was applied to calculate the HR and 95% CI of risk of developing HF. Mediation analysis was used to understand whether hypertension and diabetes mediated the association between sleep duration, snoring and HF. Data analysis was performed from 1 June 2021 to 1 June 2022.ResultsDuring a median follow-up of 8.8 years, we documented 1343 incident HF cases. Relative to sleep duration of 7.0–7.9 hour/night, short sleep duration was associated with higher risk of developing HF: adjusted HR was 1.24 (95% CI 1.01 to 1.55) for <6 hours/night and 1.29 (95% CI 1.06 to 1.57) for 6.0–6.9 hours/night, after adjustment for potential confounders such as age, sex, smoking, hypertension and diabetes. A similar 20%–30% higher risk of incident HF was found in individuals reporting occasional or frequent snoring relative to never/rare snorers: adjusted HR was 1.32 for occasional snoring (95% CI 1.14 to 1.52) and 1.24 (95% CI 1.06 to 1.46) for frequent snoring. Presence of diabetes significantly mediated the association between both short sleep duration and snoring and HF risk and hypertension significantly mediated the snoring–HF relationship.ConclusionShort sleep duration and snoring were associated with high risk of HF.

Funder

Natural Science Foundation of Hebei Province

Publisher

BMJ

Subject

Cardiology and Cardiovascular Medicine

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