Spanish journal of psychiatry and mental health · 2023
Obsessive-compulsive symptoms and disorder in clozapine-treated schizophrenia.
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Seow Jonathan Gerard Hsueh Ching, Tan Deborah Hui Yi, See Yuen Mei, Yee Jie Yin, Ng Boon Tat, Tang Charmaine, Lee Jimmy
Аннотация
BACKGROUND: Obsessive-compulsive symptoms (OCS) and obsessive-compulsive disorder (OCD) are commonly reported in patients with schizophrenia. Furthermore, the use of clozapine in treatment-resistant schizophrenia has been thought to induce or aggravate these disorders. To date, there is a paucity of research regarding the prevalence and associated factors. Hence, this study aims to report the prevalence of OCS and OCD, and examine potential risk factors, in clozapine-treated schizophrenia.
METHODS: This is a cross-sectional study conducted in the only tertiary hospital for psychiatric patients in Singapore. In total, 162 patients on a stable dose of clozapine were recruited for this study; 159 patients with a diagnosis of schizophrenia or schizoaffective disorder were included in the current analysis. Sociodemographic, clinical and treatment factors were analysed to identify factors associated with OCS and OCD.
RESULTS: The prevalence of OCS and OCD is 21.4% and 12.6% respectively. Factors associated with OCS include younger age (OR:0.96, p=0.033) and younger age of onset of psychosis (OR:0.92, p=0.017). There were no significant factors associated with OCD. However, in an analysis of both OCS and/or OCD, factors associated include younger age (OR:0.96, p=0.027) and younger age of onset of psychosis (OR:0.91, p=0.016). Severity of psychotic illness and Clozapine dose were not associated with OCS or OCD in clozapine-treated schizophrenia.
DISCUSSION & CONCLUSIONS: Our results suggest a high prevalence of OCS and OCD in clozapine-treated schizophrenia which clinicians should routinely screen for. Further research is warranted to establish the link between the factors identified in this study and OCS/OCD in clozapine-treated schizophrenia.
METHODS: This is a cross-sectional study conducted in the only tertiary hospital for psychiatric patients in Singapore. In total, 162 patients on a stable dose of clozapine were recruited for this study; 159 patients with a diagnosis of schizophrenia or schizoaffective disorder were included in the current analysis. Sociodemographic, clinical and treatment factors were analysed to identify factors associated with OCS and OCD.
RESULTS: The prevalence of OCS and OCD is 21.4% and 12.6% respectively. Factors associated with OCS include younger age (OR:0.96, p=0.033) and younger age of onset of psychosis (OR:0.92, p=0.017). There were no significant factors associated with OCD. However, in an analysis of both OCS and/or OCD, factors associated include younger age (OR:0.96, p=0.027) and younger age of onset of psychosis (OR:0.91, p=0.016). Severity of psychotic illness and Clozapine dose were not associated with OCS or OCD in clozapine-treated schizophrenia.
DISCUSSION & CONCLUSIONS: Our results suggest a high prevalence of OCS and OCD in clozapine-treated schizophrenia which clinicians should routinely screen for. Further research is warranted to establish the link between the factors identified in this study and OCS/OCD in clozapine-treated schizophrenia.