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Revista médica de Chile

Print version ISSN 0034-9887

Abstract

SALDIAS PENAFIEL, Fernando et al. Prevalence of obstructive sleep apnea syndrome in Chilean adults. A sub-study of the national health survey, 2016/17. Rev. méd. Chile [online]. 2020, vol.148, n.7, pp.895-905. ISSN 0034-9887.  http://dx.doi.org/10.4067/S0034-98872020000700895.

Background:

Obstructive sleep apnea syndrome (OSAS) affects approximately 10%-20% of adults and is associated with obesity, hypertension and metabolic syndrome.

Aim:

To assess the prevalence and risk factors associated with OSAS in Chilean adults.

Material and Methods:

A standardized sleep questionnaire and respiratory polygraphy at home were conducted on adults aged 18 years or more, residing in the Metropolitan Region and enrolled in the 2016/17 National Health Survey.

Results:

Two-hundred and five people between 18 and 84 years old (46% men, mean age 50 years) underwent overnight respiratory polygraphy at home. The estimated obstructive sleep apnea prevalence was 49% (62% men, 31% women) considering an apnea-hypopnea index ≥ 5 respiratory events/hour, and 16% (21% men, 13% women) considering an apnea–hypopnea index ≥ 15 respiratory events/hour. The prevalence of obstructive sleep apnea continuously increased along with age for men and women, with a later onset for women. Age, gender, body mass index, cervical and waist circumference, snoring, reporting of apnea by proxies, self-reported cardiovascular and metabolic diseases such as hypertension, diabetes and dyslipidemia, were significantly associated with OSAS. No association was found with insomnia and daytime sleepiness.

Conclusions:

The prevalence and risk factors associated to obstructive sleep apnea syndrome were high among these adults.

Keywords : Epidemiology; Hypertension, Diabetes, Dyslipidemia; Prevalence; Risk Factors; Sleep Apnea, Obstructive; Sleep Apnea Syndromes.

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