Sleep Disorders |

Predicting Sleep Apnea in the Clinic FREE TO VIEW

James Dosman, MD; John Gjevre, MD; Chandima Karunanayake, PhD; Donna Rennie, PhD; Josh Lawson, PhD; Louise Hagel, MS; Roland Dyck, MD; John Gordon, PhD; Punam Pahwa, PhD
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University of Saskatchewan, Saskatoon, SK, Canada

Chest. 2014;145(3_MeetingAbstracts):595A. doi:10.1378/chest.1825416
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SESSION TYPE: Poster Presentations

PRESENTED ON: Saturday, March 22, 2014 at 01:15 PM - 02:15 PM

PURPOSE: Obstructive sleep apnea (OSA) is a common diagnosis in clinical practice. Excessive daytime sleepiness (EDS) may be a warning for possible OSA. The objectives are to assess prevalence of EDS as measured by the Epworth Sleepiness Scale (ESS) in a rural community population and to assess the potential risk factors for OSA.

METHODS: In 2010, a baseline respiratory health questionnaire within the Saskatchewan Rural Health Study was mailed to 11,982 households in Saskatchewan, Canada. 7597 adults within the 4624 (42%) respondent households completed the ESS. Participants were categorized as normal or high (>10) ESS scores. Data obtained included respiratory symptoms, physician-diagnosed sleep apnea, snoring, hypertension, smoking and demographics. Body mass index (BMI) was calculated. Multivariable logistic regression analysis examined associations between high ESS scores and possible risk factors. Generalized estimating equations accounted for the two tiered sampling procedure of the study design.

RESULTS: Mean age of respondents was 55.0 years, 49.2% were male. The prevalence of ESS>10 and ‘doctor diagnosed’ OSA were 15.9% and 6.0%. Approximately 23% of respondents reported loud snoring and 30% had a BMI > 30. Of those with ‘doctor-diagnosed’ OSA, 37.7% reported ESS>10 (p<0.0001) and 47.7% reported loud snoring (p <0.0001). Risk of having an ESS>10 score increased with age, male gender, obesity, lower socio-economic status, marriage, loud snoring, and doctor-diagnosed sinus trouble.

CONCLUSIONS: High levels of EDS in this rural population are common and men over 55 are most at risk. Examination of reasons for residual sleepiness and snoring in persons with and without sleep apnea is warranted.

CLINICAL IMPLICATIONS: The presence of snoring, being obese, being male gender and being older than 55 years may be important indicators for the need to be investigate the possible presence of OSA.

DISCLOSURE: The following authors have nothing to disclose: James Dosman, John Gjevre, Chandima Karunanayake, Donna Rennie, Josh Lawson, Louise Hagel, Roland Dyck, John Gordon, Punam Pahwa

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