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Hou-Hsun Liao,1â 3 Hanoch Livneh,4 Yu-Jung Chung,1 Ching-Hsing Lin,5,6 Ning-Sheng Lai,6,7 Hung-Rong Yen,2,8â 11 Tzung-Yi Tsai3,12,13 1Department of Chinese Medicine, Dalin Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, Dalin Township, Chiayi, 62247, Taiwan; 2Graduate Institute of Chinese Medicine, School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; 3Department of Nursing, Tzu Chi University of Science and Technology, Hualien, 62247, Taiwan; 4Rehabilitation Counseling Program, Portland State University, Portland, OR, 97207-0751, USA; 5Department of Orthopedics, Dalin Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan; 6School of Medicine, Tzu Chi University, Hualien, 97004, Taiwan; 7Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan; 8Department of Chinese Medicine, China Medical University Hospital, Taichung, 404, Taiwan; 9Research Center for Traditional Chinese Medicine, Department of Medical Research, China Medical University Hospital, Taichung, 404, Taiwan; 10Chinese Medicine Research Center, China Medical University, Taichung, 404, Taiwan; 11Department of Biotechnology, Asia University, Taichung, 413, Taiwan; 12Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, 70428, Taiwan; 13Department of Medical Research, Dalin Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, TaiwanCorrespondence: Hung-Rong Yen; Tzung-Yi Tsai Tel +886-4-22053366-3313; +886-5-2648000-3209Fax +886-4-22037690; +886-5-2648006Email hungrongyen@gmail.com; dm732024@tzuchi.com.twObjective: Patients with rheumatoid arthritis (RA) often suffer from bone complications due to persistent joint inflammation, especially incident fracture. Nowadays, Chinese herbal medicines (CHMs) have provided safe and effective therapy for treating skeletal conditions, but it is unclear whether CHMs can prevent fracture onset among RA individuals. This study aimed to determine the association between the use of CHMs and the risk of fracture among them.Methods: This retrospective, population-based study retrieved administrative health data from the Taiwan National Health Insurance (NHI) database to identify patients with newly diagnosed RA between 2000 and 2009. Of the 6178 incident RA patients, 2495 matched pairs of CHMs users and non-CHMs users were identified by propensity score matching. Enrollees with hip fractures prior to RA onset were excluded. Included subjects were followed until the end of 2013. Incidence and adjusted hazard ratios (HR) of new-onset bone fracture in the multivariable Cox proportional hazard model were measured with 95% confidence interval (CI).Results: Fracture incidence was lower in CHMs users than in the comparison cohort (26.91 vs 32.94 per 1000 person-years, respectively), with an adjusted HR of 0.82 (95% CI: 0.73â 0.92). Subjects receiving CHMs for more than 2 years had a much lower risk of fracture onset by more than 50%. Some CHMs prescriptions (Yan Hu Suo, Bei Mu, Da Huang, Dang Shen, Fu-Zi, Shu-Jing-Huo-Xue-Tang, Dang-Gui-Nian-Tong-Tang, Jia-Wei-Xiao-Yao-San, Gan-Lu-Yin, and Gui-Zhi-Shao-Yao-Zhi-Mu-Tang) were associated with reduced fracture risk.Conclusion: Adding CHMs to routine treatment was found to be related to lower fracture risk in RA patients.Keywords: rheumatoid arthritis, fracture, Chinese herbal medicines, risk |
