Title: Comparing multcple sleep latency test and epworth sleepiness scale in the measurement of excessive daytime sleepiness in patients with obstructive sleep apnea-hyponea syndrome
Abstract: Objective To compare the use of multiple sleep latency test (MSLT) and epworth sleepiness scale (ESS) in measuring excessive daytime sleepiness (EDS) in patients with different severity of obstructive sleep apnea-hyponea syndrome (OSAHS). Methods 120 adult habitual snorers treated by respiratory physicians in First Hospital of Quanzhou Affiliated to Fujian Medical University were selected for this study. The patients were grouped as simple snorers and OSAHS by the Results of polysomnography test: 30 patients were in the simple snorer group, with 24 male and 6 female. 90 patients were in the OSAHS group, with 78 male and 12 female. EDS were measured by a Chinese version of ESS and a five-nap MSLT. Results There was no significant difference in gender, age, and body mass index between the two groups. As the condition of OSAHS worsened, the ESS scores increased and mean sleep latencies decreased. Pearson correlation analysis showed that ESS scores were positively correlated with severity of OSAHS (determined by AHI) and mean sleep latencies were negatively correlated with severity of OSAHS. The Chinese version of ESS had a moderate level of internal consistency and 3 items had poor relation with total as measured by Cronbach's alpha (α=0.70, 0.1~0.3 respectively). Conclusion Both MSLT and Chinese version of ESS are useful in the measurement of EDS in Chinese population. ESS, although some modification is needed, is a relatively simple and cost-effective method for clinical practice. But for research, MSLT is better than ESS in the measurement of EDS in relation to the severity of OSAHS.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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