Ma, Tian-Tian; Wang, Zixuan; Qin, Xiwen; Ju, Chengsheng; Lau, Wallis CY; Man, Kenneth KC; Castle, David; ... Wong, Ian CK; + view all Ma, Tian-Tian; Wang, Zixuan; Qin, Xiwen; Ju, Chengsheng; Lau, Wallis CY; Man, Kenneth KC; Castle, David; Chang, Wing Chung; Chan, Adrienne YL; Cheung, Edmund CL; Chui, Celine SL; Wong, Ian CK; - view fewer (2023) Global trends in the consumption of benzodiazepines and Z-drugs in 67 countries and regions from 2008-2018: a sales data analysis. Sleep , Article zsad124. 10.1093/sleep/zsad124.

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Abstract

STUDY OBJECTIVES: To investigate the trends in the consumption of benzodiazepines (BZDs) and Z-drugs at global, regional, and national levels from 2008 to 2018, across 67 countries and regions. METHODS: This cross-sectional descriptive study investigated the consumption of BZDs and Z-drugs analysed by global pharmaceutical sales data from the IQVIA-Multinational Integrated Data Analysis System database between 2008 and 2018. Consumption was measured in defined daily dose per 1,000 inhabitants per day (DDD/TID). The global, regional, and national trends were estimated using linear mixed models. Additional analyses were conducted by grouping countries by income levels. The association between consumption and Gross Domestic Product (GDP) and the prevalence of different medical conditions was explored in univariable linear models. RESULTS: BZD consumption decreased annually by -1.88% (95% CI: -2.27%, -1.48%), and Z-drugs increased by +3.28% (+2.55%, +4.01%). In 2008, the top ten countries for BZD and Z-drug consumption were all European, ranging from 63.69 to 128.24 DDD/TID. Very low levels were found in Russia, Kuwait, United Arab Emirates, Saudi Arabia, French West Africa, and the Philippines, with DDD/TID <1. The consumption in high-income countries was much higher than in middle-income countries. The results showed that increased consumption of BZDs and Z-drugs was statistically associated (P<0.05) with higher GDP and increased prevalence of anxiety, self-harm, neurological disorders, chronic respiratory diseases, cardiovascular diseases and cancers. CONCLUSIONS: Distinct differences in consumption and trends of BZDs and Z-drugs were found across different countries and regions. Further exploration is needed to understand the association and safety of the use of BZDs and Z-drugs in patients with comorbidities.

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