Michelle H Chen1,2, Stephanie A Korenic1,2, Emerson M Wickwire2,3, S Andrea Wijtenburg1,2, L Elliot Hong1,2, Laura M Rowland1,2. 1. Maryland Psychiatric Research Center, University of Maryland School of Medicine , Catonsville, Maryland. 2. Department of Psychiatry, University of Maryland School of Medicine , Baltimore, Maryland. 3. Sleep Disorders Center, Division of Pulmonary and Critical Care Medicine, University of Maryland School of Medicine , Baltimore, Maryland.
Abstract
OBJECTIVE/ BACKGROUND: Sleep dysfunction is prevalent among patients with schizophrenia. Although sex differences have been identified in schizophrenia, sex differences in sleep patterns among patients with schizophrenia are not established. Therefore, the current study examined sex differences in subjective sleep quality patterns in people with schizophrenia utilizing a standardized inventory. PARTICIPANTS: Study sample consisted of 75 patients with schizophrenia and 82 healthy controls (HC). METHODS: Participants completed the Pittsburgh Sleep Quality Index (PSQI). RESULTS: Compared to HC, patients with schizophrenia were more likely to report being poor sleepers (PSQI global score > 5), longer sleep duration, more sleep disturbances, longer sleep onset latency, increased daytime dysfunction due to poor sleep, and more frequent use of sleep medications. Regarding sex differences, female patients were more likely to report being poor sleepers and endorsed more sleep disturbances than female HC, while male patients reported longer sleep duration, more daytime dysfunction, and poorer overall sleep quality relative to male HC. Additionally, higher level of sleep dysfunction was linked to higher symptom severity in male patients only. CONCLUSIONS: Patients with schizophrenia endorsed a range of sleep difficulties, and male and female patients with schizophrenia differ compared to their HC counterparts. Implications for treatment of sleep complaints among patients with schizophrenia are discussed.
OBJECTIVE/ BACKGROUND:Sleep dysfunction is prevalent among patients with schizophrenia. Although sex differences have been identified in schizophrenia, sex differences in sleep patterns among patients with schizophrenia are not established. Therefore, the current study examined sex differences in subjective sleep quality patterns in people with schizophrenia utilizing a standardized inventory. PARTICIPANTS: Study sample consisted of 75 patients with schizophrenia and 82 healthy controls (HC). METHODS:Participants completed the Pittsburgh Sleep Quality Index (PSQI). RESULTS: Compared to HC, patients with schizophrenia were more likely to report being poor sleepers (PSQI global score > 5), longer sleep duration, more sleep disturbances, longer sleep onset latency, increased daytime dysfunction due to poor sleep, and more frequent use of sleep medications. Regarding sex differences, female patients were more likely to report being poor sleepers and endorsed more sleep disturbances than female HC, while male patients reported longer sleep duration, more daytime dysfunction, and poorer overall sleep quality relative to male HC. Additionally, higher level of sleep dysfunction was linked to higher symptom severity in male patients only. CONCLUSIONS:Patients with schizophrenia endorsed a range of sleep difficulties, and male and female patients with schizophrenia differ compared to their HC counterparts. Implications for treatment of sleep complaints among patients with schizophrenia are discussed.
Authors: Elizabeth A Klingaman; Jessica Palmer-Bacon; Melanie E Bennett; Laura M Rowland Journal: Curr Psychiatry Rep Date: 2015-10 Impact factor: 5.285