Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs Syndrome

Background and Objective We used the Symptom Checklist 90-Revised (SCL-90-R) to compare the psychosomatic symptom profiles between periodic limb movement disorder (PLMD) and restless legs syndrome (RLS) patients. Methods Twenty consecutive drug-naïve RLS patients, 20 age- and sex-matched patients wi...

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Main Authors: Jung-Ick Byun, Jeong-Su Kim, Yu Yong Shin, Kyoung Jin Hwang, Yu Jin Jung, Won Chul Shin
Format: Article
Language:English
Published: Korean Society of Sleep Medicine 2019-06-01
Series:Sleep Medicine Research
Subjects:
Online Access:http://www.sleepmedres.org/upload/pdf/smr-2019-00339.pdf
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author Jung-Ick Byun
Jeong-Su Kim
Yu Yong Shin
Kyoung Jin Hwang
Yu Jin Jung
Won Chul Shin
author_facet Jung-Ick Byun
Jeong-Su Kim
Yu Yong Shin
Kyoung Jin Hwang
Yu Jin Jung
Won Chul Shin
author_sort Jung-Ick Byun
collection DOAJ
description Background and Objective We used the Symptom Checklist 90-Revised (SCL-90-R) to compare the psychosomatic symptom profiles between periodic limb movement disorder (PLMD) and restless legs syndrome (RLS) patients. Methods Twenty consecutive drug-naïve RLS patients, 20 age- and sex-matched patients with PLMD and healthy controls were enrolled. Questionnaires evaluating sleep (Pittsburgh Sleep Quality Index, and Insomnia Severity Index), depression (Beck Depression Inventory II), and psychosomatic symptoms (SCL-90-R) were administered. Polysomnography was performed in the patients with PLMD or RLS. Results The mean age of the subjects was 57.5 ± 10.9 years, and half of the subjects were male. Compared with the patients with RLS, the patients with PLMD exhibited a reduced total sleep time (276.6 ± 41.3 vs. 322.4 ± 42.9, p = 0.04) and a decreased proportion of REM sleep (12.5 ± 6.6 vs. 17.8 ± 7.8, p = 0.009). The patients with RLS exhibited higher SCL-90-R T-scores on the somatization (post hoc p < 0.001), obsessive-compulsive (post hoc p < 0.001), interpersonal sensitivity (post hoc p = 0.003), anxiety (post hoc p = 0.005), and psychoticism (post hoc p = 0.004) domains than the controls. Compared to the controls, the patients with PLMD exhibited higher SCL-90-R scores only in hostility (post hoc p = 0.016). Somatization in the RLS patients was significantly worse than that in the PLMD patients (post hoc p = 0.003). Conclusions The results of our study demonstrate that psychosomatic distress is greater in RLS patients and lesser in PLMD patients. Somatization was a distinguishing symptom between RLS and PLMD.
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spelling doaj.art-1dc6f09166ea4e88bc82c6c1b0cd4ad62022-12-22T00:12:27ZengKorean Society of Sleep MedicineSleep Medicine Research2093-91752233-88532019-06-01101253010.17241/smr.2019.00339128Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs SyndromeJung-Ick Byun0Jeong-Su Kim1Yu Yong Shin2Kyoung Jin Hwang3Yu Jin Jung4Won Chul Shin5 Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Korea Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Korea Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Korea Department of Neurology, School of Medicine, Kyung Hee University, Seoul, Korea Department of Neurology, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, KoreaBackground and Objective We used the Symptom Checklist 90-Revised (SCL-90-R) to compare the psychosomatic symptom profiles between periodic limb movement disorder (PLMD) and restless legs syndrome (RLS) patients. Methods Twenty consecutive drug-naïve RLS patients, 20 age- and sex-matched patients with PLMD and healthy controls were enrolled. Questionnaires evaluating sleep (Pittsburgh Sleep Quality Index, and Insomnia Severity Index), depression (Beck Depression Inventory II), and psychosomatic symptoms (SCL-90-R) were administered. Polysomnography was performed in the patients with PLMD or RLS. Results The mean age of the subjects was 57.5 ± 10.9 years, and half of the subjects were male. Compared with the patients with RLS, the patients with PLMD exhibited a reduced total sleep time (276.6 ± 41.3 vs. 322.4 ± 42.9, p = 0.04) and a decreased proportion of REM sleep (12.5 ± 6.6 vs. 17.8 ± 7.8, p = 0.009). The patients with RLS exhibited higher SCL-90-R T-scores on the somatization (post hoc p < 0.001), obsessive-compulsive (post hoc p < 0.001), interpersonal sensitivity (post hoc p = 0.003), anxiety (post hoc p = 0.005), and psychoticism (post hoc p = 0.004) domains than the controls. Compared to the controls, the patients with PLMD exhibited higher SCL-90-R scores only in hostility (post hoc p = 0.016). Somatization in the RLS patients was significantly worse than that in the PLMD patients (post hoc p = 0.003). Conclusions The results of our study demonstrate that psychosomatic distress is greater in RLS patients and lesser in PLMD patients. Somatization was a distinguishing symptom between RLS and PLMD.http://www.sleepmedres.org/upload/pdf/smr-2019-00339.pdfPeriodic limb movement disorderRestless legs syndromePsychosomatic symptomsSCL-90-R
spellingShingle Jung-Ick Byun
Jeong-Su Kim
Yu Yong Shin
Kyoung Jin Hwang
Yu Jin Jung
Won Chul Shin
Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs Syndrome
Sleep Medicine Research
Periodic limb movement disorder
Restless legs syndrome
Psychosomatic symptoms
SCL-90-R
title Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs Syndrome
title_full Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs Syndrome
title_fullStr Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs Syndrome
title_full_unstemmed Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs Syndrome
title_short Difference in Psychological Distress between Patients with Periodic Limb Movement Disorder and Restless Legs Syndrome
title_sort difference in psychological distress between patients with periodic limb movement disorder and restless legs syndrome
topic Periodic limb movement disorder
Restless legs syndrome
Psychosomatic symptoms
SCL-90-R
url http://www.sleepmedres.org/upload/pdf/smr-2019-00339.pdf
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