The incidence rates and risk factors of Parkinson disease in patients with psoriasis: A nationwide population-based cohort study - 19/12/19
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Abstract |
Background |
The association between psoriasis and Parkinson disease has not been established.
Objective |
To determine the incidence rates and risk factors of Parkinson disease in patients with psoriasis.
Methods |
We conducted a nationwide population-based cohort study. The data from patients with psoriasis (N = 548,327, ≥20 years of age, 53.32% men and 46.68% women) and age- and sex-matched control patients (N = 2,741,635) without psoriasis were analyzed in this study.
Results |
The incidence rates of Parkinson disease per 1000 person-years were 0.673 and 0.768 in the control and psoriasis groups, respectively. The psoriasis group showed a significantly increased risk of developing Parkinson disease (hazard ratio [HR] 1.091, 95% confidence interval [CI] 1.029-1.115). The risk of Parkinson disease was significantly higher among the psoriasis patients who were not receiving systemic therapy (HR 1.093, 95% CI 1.031-1.159) and lower among the psoriasis patients on systemic therapy (HR 1.04, 95% CI 0.806-1.316).
Limitations |
The limitations of this study included the retrospective design, patient inclusion solely on the basis of diagnostic codes, and unavailability of data on confounding factors.
Conclusion |
Systemic anti-inflammatory agents might mitigate the risk of Parkinson disease in psoriasis patients.
Le texte complet de cet article est disponible en PDF.Key words : cohort study, incidence, Parkinson disease, population-based, psoriasis, risk factor
Abbreviations used : CI, HR, ICD-10, IL, NHIS, PD, RXR, TH1, TH17, TNF-α
Plan
Funding sources: Supported by the National Research Foundation of Korea grant funded by the Korea government (nos. NRF-2018R1A2B6002952, 2018R1D1A1B07044100, and 2018R1A5A2025079). |
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Conflicts of interest: None disclosed. |
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