P460 Prevalence of restless legs syndrome at a neurology clinic in Korea

Abstract

trend to higher oxygen desaturation index (median 11.6 vs 10.2, p = 0.06) and those with difficulties initiating sleep (DIS) a trend to lower nadir O2(Q25 78% vs Q25 81%, p = 0.06). Increased depression scores were found in subjects with difficulties maintaining sleep (p = 0.04), early morning awakenings (p < 0.001) and NRS (p = 0.002) as well as a trend to be higher in those with DIS (p = 0.06). Scores of anxiety and EDS were increased in the NRS group only (p = 0.006 and p = 0.025). Significantly higher scores of nocturnal dyspnoea, indicating more complaints, were found in all insomnia groups. This was also true concerning nocturnal arrhythmia for all insomnia groups with the exception of DIS. Conclusion: Complaints of insomnia in patients with SDB are probably more related to the psychological status, such as depression. Assessing insomnia when treating patients with SDB might be therefore of importance, since depression in patients with different chronic diseases has been found to increase the risk for a non-compliant behaviour to treatment.