Predictive value of Berlin Questionnaire and Epworth Sleepiness Scale for obstructive sleep apnea in a sleep clinic population
Clinical Respiratory Journal, ISSN: 1752-699X, Vol: 8, Issue: 3, Page: 292-296
2014
- 61Citations
- 84Captures
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- Citations61
- Citation Indexes59
- 59
- CrossRef44
- Clinical Citations1
- PubMed Guidelines1
- Policy Citations1
- Policy Citation1
- Captures84
- Readers84
- 84
Article Description
Introduction: The Berlin Questionnaire (BQ) and Epworth Sleepiness Scale (ESS) are two of the widely used screening instruments for subjects suffering from sleep disorders. Objectives: To determine the predictive accuracy of the BQ and ESS in the subjects who were admitted to our sleep clinic, using overnight polysomnography as the 'gold standard'. Methods: The BQ and ESS were performed to 1450 subjects hospitalized in our sleep clinic for polysomnographic evaluation. Results: One thousand two hundred thirty of 1450 subjects (84.8%) had apnea-hypopnea index (AHI)≥5, and 70.5% of them were classified as being at high risk of sleep apnea with BQ and 45.9% of them were classified as having excessive daytime sleepiness with ESS. Being in the high-risk group with the self-reported, BQ predicted an AHI ≥5 with a sensitivity of 0.73 and a specificity of 0.44, vs a sensitivity of 0.46 and a specificity of 0.60 with the self-reported ESS. Sensitivity of BQ (0.80) was highest when we selected the cut-off value of AHI as 30. When we evaluated the predictive accuracy of BQ and ESS together, specificity of both instruments as 0.72 at AHI cut-off value of 5 was found. AHIs were significantly correlated with the scores in each category and the total scores of BQ (P<0.0001). Conclusions: The BQ is a poor predictor of obstructive sleep apnea (OSA) in subjects admitted to our sleep clinic. BQ and ESS together may be used to detect patients with low risk for OSA. © 2013 John Wiley and Sons Ltd.
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