Hazardous use of benzodiazepine receptor agonists in psychiatric clinics in China: electronic prescription database study

Author:

Xu Xiaomin,Wang Xuyi,Zhong Na,Xu Jiajun,Li Chuanwei,Wang Gang,Wang Wenzhe,Ye Yujian,Chen Yong,Liu TieqiaoORCID,Zhao Min,Jiang HaifengORCID

Abstract

BackgroundBenzodiazepine receptor agonists (BZRAs) are commonly used clinically and data on their hazardous use from large populations of psychiatric patients is limited.AimsTo assess the current status of hazardous BZRA use and related factors in Chinese out-patient psychiatric settings.MethodThe study included out-patients with at least one BZRA prescription from five psychiatric settings in east, central and west China in 2018. Demographic and prescription information were extracted from the electronic prescription database. We defined the co-occurrence of overdose and long-term use as hazardous use, and patients whose recorded diagnoses did not meet any indications approved by the Chinese Food and Drug Administration as over-indication users. Additionally, 200 hazardous users were randomly selected for follow-up interview to confirm the actual situation.ResultsAmong 720 054 out-patients, 164 450 (22.8%) had at least one BZRA prescription; 55.9% of patients were prescribed over-indication and 3% were defined as hazardous users. Multilevel multivariate regression analysis with hospital as a random effect showed that factors associated with hazardous use were older age (18–64 years: β = 0.018; 95% CI 0.013–0.023; >65 years: β = 0.015; 95% CI 0.010–0.021), male (β = 0.005, 95% CI 0.003–0.007), over-indication (β = 0.013, 95% CI 0.012–0.015), more out-patient visits (β = 0.006, 95% CI 0.006–0.006) and more visits to different doctors (β = 0.007, 95% CI 0.007–0.008); 98.5% of hazardous users (197/200) could not be contacted.ConclusionsBZRAs are commonly used and there is a relatively large proportion of over-indication users among Chinese psychiatric out-patients. However, only a small proportion of hazardous users were detected. The study highlights how to use prescription data to support improvements in clinical practice.

Funder

National Natural Science Foundation of China

Shanghai Municipal Health Commission

Publisher

Royal College of Psychiatrists

Subject

Psychiatry and Mental health

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