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Sleep-wake patterns in schizophrenia patients compared to healthy controls
Pedro Afonso1, Maria Luísa Figueira, Teresa Paiva
1Psychiatric Hospital Centre of Lisbon , Lisbon , Portugal.
Summary
Schizophrenia patients exhibit poorer sleep quality, increased sleep disturbances, and lower quality of life compared to healthy individuals. These findings highlight significant sleep-wake pattern differences in schizophrenia.
Area of Science:
- Neuroscience
- Psychiatry
- Sleep Medicine
Background:
- Sleep disturbances are common in individuals with schizophrenia.
- Understanding these disturbances is crucial for improving patient outcomes.
Purpose of the Study:
- To compare sleep patterns, sleep quality, and quality of life (QoL) between schizophrenia patients and healthy controls.
- To identify specific sleep abnormalities in schizophrenia.
Main Methods:
- 34 schizophrenia outpatients (SP) and 34 healthy subjects (HS) participated.
- Sleep-wake cycles assessed via wrist-actigraphy and sleep diaries.
- Pittsburgh Sleep Quality Index (PSQI), WHOQOL-Bref, and PANSS used for assessments.
Main Results:
- SP showed poorer sleep efficiency, longer sleep latency, and more nighttime awakenings than HS.
- SP reported worse sleep quality (higher PSQI scores) and lower QoL across all domains.
- Observed sleep-wake phase disorders in SP included advance sleep-phase syndrome and irregular sleep-wake rhythm.
Conclusions:
- Schizophrenia is associated with significantly disturbed sleep-wake patterns.
- Patients with schizophrenia experience poorer sleep quality and reduced quality of life compared to healthy controls.
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