Increased risk of heart failure in women with symptoms of sleep-disordered breathing

Feb 6, 2016Sleep medicine

Higher risk of heart failure in women with sleep breathing problems

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Abstract

Among women with both snoring and excessive daytime sleepiness, 5.3% developed heart failure during follow-up.

Women exhibiting both symptoms had a significantly higher incidence of heart failure compared to those without these symptoms (5.3% vs. 0.9%).
The combination of snoring and excessive daytime sleepiness is associated with a twofold increase in the risk of developing heart failure.
After adjusting for various health and lifestyle factors, the hazard ratio for heart failure in women with both symptoms was 2.2.
This study suggests that obstructive sleep apnea symptoms may be a risk factor for heart failure in women.

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BACKGROUND: An association between obstructive sleep apnea and the incidence of heart failure has been reported in men but not in women. The aim of this study was to investigate whether a combination of snoring and excessive daytime sleepiness, the two main symptoms of obstructive sleep apnea syndrome, was able to predict incident heart failure in a population-based sample of women.

METHODS: The population-based cohort study Sleep and Health in Women (SHE; n = 5990 women born between 1901 and 1980) was used, with baseline questionnaire data from April 2000 relating to snoring, excessive daytime sleepiness, and covariates. Using data retrieved from the Swedish National Patient Register and Cause of Death Register, the follow-up of incident heart failure continued until 31 December 2011.

RESULTS: Among women with both snoring and excessive daytime sleepiness at baseline, 5.3% developed heart failure during follow-up compared with 0.9% in the reference group with neither snoring nor excessive daytime sleepiness. After adjustment for age, waist circumference, smoking, alcohol, hypertension, diabetes, previous myocardial infarction, physical inactivity, depressive symptoms, menopausal status, and hormone replacement therapy, women with the combination of snoring and excessive daytime sleepiness had a twofold increase in the risk of incident heart failure (hazard ratio [HR] 2.2 95% confidence interval [CI] 1.1-4.4).

CONCLUSION: Symptoms of obstructive sleep apnea, that is, the combination of snoring and excessive daytime sleepiness, are associated with an increased risk of developing heart failure in women.

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Increased risk of heart failure in women with symptoms of sleep-disordered breathing

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