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Updated: Jul 11, 2025

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
Dose-response association of benzodiazepine use and development of deep vein thrombosis
Nai-Chen Shih1, Liang-Tsai Yeh2, Bo-Yuan Wang3
1Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Family Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.
Abstract:
Benzodiazepines have sedative effects that cause reduced activity in users and may increase the risk of deep vein thrombosis. However, few studies have examined this potential risk of benzodiazepine use. This study examined the association between benzodiazepine use and the risk of deep vein thrombosis (DVT) in adults in Taiwan using a longitudinal health insurance database. The study population included 12,546 individuals with DVT and 50,184 matched controls. Results showed that benzodiazepine use was associated with an increased risk of DVT occurrence (adjusted odds ratio [aOR]: 1.66; 95 % CI, 1.54-1.79; P <0.001), with a dose-response relationship. Patients with a higher defined daily dose had a higher risk of DVT, with ORs of 1.65-, 2.09-, and 2.16-fold higher for those with an average benzodiazepine dose of <0.5, 0.5-0.9, or ≥1 (DDD/day), respectively, compared to nonbenzodiazepine users. Stratification by age, sex, and follow-up duration yielded similar results. This study highlights the need to evaluate the association and benefits of benzodiazepine prescription to decrease the risk of DVT development.
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