Association between depression and rheumatoid arthritis: two longitudinal follow-up studies using a national sample cohort
- Authors
- Kim, So Young; Chanyang, Min; Oh, Dong Jun; Choi, Hyo Geun
- Issue Date
- Aug-2020
- Publisher
- Oxford University Press
- Keywords
- depression; arthritis; rheumatoid; risk factors; cohort studies; epidemiology
- Citation
- Rheumatology, v.59, no.8, pp 1889 - 1897
- Pages
- 9
- Journal Title
- Rheumatology
- Volume
- 59
- Number
- 8
- Start Page
- 1889
- End Page
- 1897
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/19463
- DOI
- 10.1093/rheumatology/kez559
- ISSN
- 1462-0324
1462-0332
- Abstract
- Objective: To investigate the bidirectional relation between RA and depression. Methods: Data from the Korean Health Insurance Review and Assessment Service - National Sample Cohort from 2002 to 2013 were analysed. Patients >= 20 years of age were included. Study I was conducted with 38 087 depression patients and 152 348 matched control participants. Study II was conducted with 7385 RA patients and 29 540 matched control participants. Stratified Cox proportional hazards models were used to analyse the hazard ratios (HRs) for depression and RA (study I) and for RA and depression (study II). The data were adjusted by the Charlson comorbidity index; rheumatic disease was excluded. Subgroups were also analysed according to age and sex. Results: A total of 0.7% (1260/38 087) of the depression group and 0.6% (883/152 348) of the control I group had RA (P = 0.02). The HR for RA in the depression group was not significantly higher than that in control I group. In study II, 5.5% (408/7385) of the RA group and 4.3% (1246/29 540) of the control II group presented with depression (P < 0.001). The RA patients showed an adjusted depression HR that was 1.20 times higher (95% CI 1.07, 1.34; P = 0.002) than that of the control group. The >30-years-old and women subgroups of RA patients showed higher depression HRs than the control subgroups. Conclusion: RA increased the risk of depression; however, depression did not increase the risk of RA in the Korean adult population.
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