Perceived quality of life in schizophrenia: Relationships to sleep quality

Ritsner, Michael S.; Kurs, Rena; Ponizovsky, Alexander M.; Hadjez, Jack

doi:10.1023/b:qure.0000021687.18783.d6

Cited by 138 publications

(82 citation statements)

References 43 publications

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“…The first type of factors was derived by analysis on both cross-sectional [10,[38][39][40] and current longitudinal data. They include opposite factors with distressing (severity of symptoms, distress, side effects, insight, poor sleep quality, emotion coping, repeated suicide attempts, harm avoidance) and protective (task and avoidance coping styles, social support, selfefficacy, self-esteem) effects on QOL level.…”

Section: Discussionmentioning

confidence: 99%

“…This model postulated that subjective QOL is an outcome of the interaction of an array of distress factors, on the one hand, and protective factors, on the other, and suggests that satisfaction with QOL decreases if distress/clinical factors outweigh protective factors, and vice versa. The DP model was applied for analysis of relationships between QOL levels and major psychoses [10,36], schizophrenia [37], side effects of antipsychotic agents [17], coping styles [22], temperament factors [38], suicide behavior [39], and sleep quality [40].…”

Section: Introductionmentioning

confidence: 99%

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Determinants of Changes in Perceived Quality of Life in the Course of Schizophrenia

2006

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This study aimed to identify factors that influence changes in satisfaction with quality of life (QOL) of schizophrenia patients. Baseline and follow up data for 148 schizophrenia patients were obtained at hospital admission and 16 months later. Relationships between changes over time in the general QOL index, and various factors were investigated using factor, multiple regression, and partial correlation analyses. Findings indicate that baseline levels of activation symptoms, emotional distress, task oriented coping, self-esteem and friend support together explain 41% of the variability in the general QOL index 16 months later. Changes in the general QOL of schizophrenia patients over time is associated with anergia, and paranoid symptoms, emotional distress, side effects, self-esteem, emotion and avoidance related coping styles, expressed emotion, and other social support. Determinants of change in QOL of patients were different being in hospital or out of hospital in the real world. No significant association of age, education, and follow up duration, with general QOL. Based on obtained data three types of overlapping factors were defined: (1) distressing, and protective; (2) primary and secondary; and (3) factors that remained constant or changed over time. Presented data are discussed within the framework of the Distress/Protection model of QOL. The conceptualization of three types of factors influencing QOL outcomes in this model demonstrates their predictive value, and may assist investigators and mental health workers in the interpretation of QOL data that may be used to improve patients' QOL outcomes.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determinants of Changes in Perceived Quality of Life in the Course of Schizophrenia

2006

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“…Poor sleep quality correlates inversely with quality of life in psychiatric populations even after correcting for adverse drug effects 17,18 . The true incidence of sleep apnoea and in particular the obstructive sleep apnoea syndrome in those with long term mental health problems maintained on psychotropic medication is unclear with few systematic studies of community cohorts.…”

Section: Discussionmentioning

confidence: 99%

Sleep disordered breathing in community psychiatric patients

et al. 2012

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-Background and Objectives:Sleep disturbance is prominent in many neuropsychiatric disorders and may precipitate or exacerbate a range of psychiatric conditions. Few studies have investigated sleep disordered breathing and in particular obstructive sleep apnoea in community psychiatric patients and the commonly used screening instruments have not been evaluated in patients with psychiatric disorders. The objective is to evaluate the prevalence of sleep disordered breathing in a community cohort with chronic mental illness on long term psychotropic medication, and to assess the effectiveness of commonly used screening instruments to detect abnormal sleep.Methods: 52 patients completed sleep questionnaires and 50 undertook overnight oximetry. Results: 52% (n = 26) had sleep-disordered breathing; 20% (n = 10) had moderate/severe sleep apnoea. The Epworth Sleepiness Score and the Pittsburgh Sleep Quality Inventory did not predict sleep disordered breathing.Conclusions: Patients with psychiatric disorders in the community have a high rate of undiagnosed sleep disordered breathing, which is not reliably detected by established sleep disorder screening questionnaires.

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“…This is despite service users emphasising the importance of functioning in their recovery (Wood, Price, Morrison, & Haddock, 2011). Indeed, research has shown that sleep disturbance is associated with impaired quality of life (QoL) and coping in people experiencing psychosis (Ritsner, Kurs, Ponizovsky, & Hadjez, 2004;Hofstetter, Lysaker, & Mayeda, 2005). Neuropsychological findings also demonstrate that sleep disturbance contributes to impaired performance on tasks of sustained 4 attention (Forest et al, 2007), executive functioning (Keshavan, Cashmere, Miewald, & Yeragani, 2004) and IQ (Manoach et al, 2014).…”

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confidence: 99%

High resolution examination of the role of sleep disturbance in predicting functioning and psychotic symptoms in schizophrenia: A novel experience sampling study.

Mulligan¹,

Haddock²,

Emsley³

et al. 2016

Journal of Abnormal Psychology

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Sleep disturbance is common in schizophrenia, but its role in predicting functioning and psychotic symptoms has yet to be rigorously examined. The purpose of this study was to conduct a prospective, high-resolution examination of the relationship between nightly sleep and next-day functioning and psychotic symptoms in people with a diagnosis of schizophrenia. Experience sampling methodology was integrated with actigraphy and sleep diaries across 7 days in 22 patients with a diagnosis of schizophrenia. Momentary assessments of mood, psychotic symptoms, and functioning were gathered at 5 points each day following pseudorandom schedules. Multilevel modeling was performed to evaluate the links between variables. Objective and subjective sleep disturbance predicted reduced next-day functioning, which remained significant after controlling for psychotic symptom severity. Increased sleep fragmentation and reduced subjective and objective sleep efficiency predicted greater next-day auditory hallucinations, whereas increased objective sleep fragmentation and reduced subjective sleep quality predicted greater paranoia and delusions of control. Negative affect on awakening mediated a proportion of these relationships (range: 17.9 -57.3%). For the first time, we show that sleep disturbance is a predictor of next-day impaired functioning and psychotic symptom severity in people with a diagnosis of schizophrenia. Therefore, interventions targeting sleep may have the potential to directly and indirectly enhance functional and symptomatic recovery in those experiencing psychosis.

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Perceived quality of life in schizophrenia: Relationships to sleep quality

Cited by 138 publications

References 43 publications

Determinants of Changes in Perceived Quality of Life in the Course of Schizophrenia

Determinants of Changes in Perceived Quality of Life in the Course of Schizophrenia

Sleep disordered breathing in community psychiatric patients

High resolution examination of the role of sleep disturbance in predicting functioning and psychotic symptoms in schizophrenia: A novel experience sampling study.

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