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KMID : 0605720200260010044
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Journal of the Korean Society of Biological Therapies in Psychiatry
2020 Volume.26 No. 1 p.44 ~ p.55
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Actigraphic Measurement of Sleep Quality and Physical Activity of Schizophrenic Inpatients with Metabolic Syndrome
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Choi Koo-Sang
Cha Yong-Ho
Yoon Bo-Hyun
Hur Sun
Yun Hyun-Ju
Jeon Bong-Hee
Jung Ha-Ran
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Abstract
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Objectives：The authors examined the association of sleep quality and metabolic syndrome (MetS) in schizophrenic patients using actigraphy.
Methods：A total of 101 schizophrenic patients were included in this study. Fifty-four (53.4%) patients met the criteria of MetS. Self-assessment of subjective sleep quality, daytime sleepiness, physical activities were measured using Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS) and International Physical Activity Questionnaire (IPAQ), respectively. Objective sleep quality and physical activity were measured by Actigraph (ActiGraph wGT3X-BT).
Results：Total time in bed (TIB) (p=0.032), sleep latency (SL) (p=0.001), wake after sleep onset (WASO) (p<0.001) and average awakening (p=0.015) were significantly longer in patients with MetS than those of non-MetS. Results of multiple logistic regression showed that long sleep latency (OR 7.876, 95% CI 1.519, p=0.014) and low sleep efficiency (OR 9.902, 95% CI 1.111, p=0.040) were high risk factors for MetS.
Conclusion：This was the first study to find the correlations of sleep quality and MetS in schizophrenic patients by objective sleep measurements. Although long sleep latency and low sleep efficiency were associated with MetS in patients with schizophrenia, more extensive and complicated designed studies may be needed to the association of MetS and sleep problems in schizophrenic patients.
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KEYWORD
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Schizophrenia, Metabolic syndrome, Actigraphy, Sleep quality, Physical activity
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