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  • Title: Neurocognitive, clinical and functional correlates of subjective quality of life in Asian outpatients with schizophrenia.
    Author: Woon PS, Chia MY, Chan WY, Sim K.
    Journal: Prog Neuropsychopharmacol Biol Psychiatry; 2010 Apr 16; 34(3):463-8. PubMed ID: 20109511.
    Abstract:
    Quality of life (QOL) impairment is evident in patients with schizophrenia and is increasingly recognised as an important evaluation criterion of treatment outcome. Hence, this study aimed to identify the neurocognitive, clinical and functional parameters associated with subjective QOL in patients with schizophrenia within an Asian context, and specifically in an outpatient setting. This study was conducted on 83 outpatients with DSM-IV diagnosis of schizophrenia, and 47 age- and gender-matched healthy controls. All participants were administered with the World Health Organisation Quality of Life Assessment-Brief Form (WHOQOL-BREF) and Brief Assessment of Cognition in Schizophrenia (BACS), to measure quality of life and cognitive function respectively. Patients were also assessed for severity of psychopathology, as well as level of psychosocial functioning, using the Positive and Negative Syndrome Scale (PANSS) and Global Assessment of Functioning (GAF) rating scales respectively. Specific psychopathology (greater severity of PANSS negative symptoms, general psychopathology subscale scores), cognitive deficits (working and verbal memories), and lower GAF scores were correlated with poorer QOL in patients. Multivariate analyses revealed that younger age, being single and lower level of psychosocial functioning were associated with poorer QOL but level of psychosocial functioning did not appear to mediate the effects of symptoms and neurocognitive deficits on QOL. Overall, this study highlighted the need for clinicians to pay more attention to these clinical, neurocognitive and functional parameters and their integrative relationships with QOL in order to optimise the treatment outcomes of patients with schizophrenia.
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