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Article Abstract
Few studies have examined the clozapine in cohort studies of Chinese patients with schizophrenia in rural primary care. The objective of this two-year cohort study was to describe the usage of clozapine and investigate and identify the demographic, clinical correlations and risk variables which affect the use of clozapine in patients with schizophrenia. A random cluster sampling technique was used, and participants were collected from China National Psychiatric Management System (CNPMS). The variables for clozapine use in individuals with schizophrenia who had undergone a two-year follow-up were determined using the generalized estimating equation (GEE). In this study, 742 patients with schizophrenia were invited, and 491 completed the two-year follow-up study. Being married, more years of education, more waist circumference, using mood stabilizer, using anticholinergic, higher ITAQ (Insight and Treatment Attitude Questionnaire) scores were more significantly related to the use of clozapine. Older age of onset, using second-generation antipsychotics (SGAs) except clozapine predicted a lower prevalence of using clozapine. The usage of clozapine was very common in patients with schizophrenia treated by primary care physicians, and was influenced by a variety of factors, including price of drugs, clinical factors, health regulations, and the characteristics of treatment environment. Further examination of the rationale and appropriateness of clozapine in primary care in China is necessary.
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