Risk of fracture in neuromyelitis optica spectrum disorder and multiple sclerosis: a nationwide cohort study in South Korea
- Authors
- Jung, Se Young; Cho, Eun Bin; Han, Kyung-Do; Jung, Jin Hyung; Yeo, Yohwan; Kong, Sung Hye; Shin, Dong Wook; Min, Ju-Hong
- Issue Date
- May-2023
- Publisher
- SPRINGER LONDON LTD
- Keywords
- Multiple sclerosis; Neuromyelitis optica spectrum disorder; Fracture risk; Asia
- Citation
- OSTEOPOROSIS INTERNATIONAL, v.34, no.5, pp 925 - 933
- Pages
- 9
- Journal Title
- OSTEOPOROSIS INTERNATIONAL
- Volume
- 34
- Number
- 5
- Start Page
- 925
- End Page
- 933
- URI
- https://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/49597
- DOI
- 10.1007/s00198-023-06715-9
- ISSN
- 0937-941X
1433-2965
- Abstract
- Purpose Interest in fractures in patients with multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) has considerably increased in the last decade. However, few studies have compared the incidence of fractures between patients with MS and NMOSD using a nationwide database. This study aimed to evaluate the differences in the risk of fracture between patients with NMOSD and MS compared to that in healthy controls using cohort data from a Korean nationwide database. Methods In this retrospective cohort study, data from the National Health Insurance Service (NHIS) database from January 2010 to December 2017 were analyzed. A total of 1,217/1,329 patients with MS/NMOSD free of fractures at the index date were included. Matched controls were selected based on age, sex, and the presence of hypertension, diabetes mellitus, and dyslipidemia. The mean follow-up durations after the index date were 4.40/4.08 years for patients with MS/NMOSD and 4.73/4.28 for their matched controls. Results The adjusted hazard ratios (aHRs) with 95% confidence intervals of any, hip, and vertebral fractures were 1.81 (1.43-2.28), 3.36 (1.81-6.24), and 2.01 (1.42-2.99) times higher for patients with MS than for controls, respectively, and they were 1.85 (1.47-2.34), 3.82 (2.05-7.11), and 2.84 (1.92-4.21) times higher for patients with NMOSD than for controls, respectively. No significant differences were observed in the incidence of fractures between the MS and NMOSD groups. Patients with MS/NMOSD had a 1.8-fold higher risk of fracture than matched controls, and the risk of hip fracture was especially high (3- to 4-fold higher). Conclusions Clinicians need to regularly assess patients with MS/NMOSD for the risk of fractures and take preventative measures to reduce it.
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