American Journal of Clinical Dermatology

, Volume 20, Issue 2, pp 201–208 | Cite as

Association of Multiple Sclerosis with Psoriasis: A Systematic Review and Meta-Analysis of Observational Studies

  • Chia-Yu Liu
  • Tao-Hsin Tung
  • Chin-Yu Lee
  • Kuo-Hsuan Chang
  • Shu-Hui Wang
  • Ching-Chi ChiEmail author
Systematic Review



Previous studies have reported the occurrence of psoriasis together with multiple sclerosis (MS). Although similar predisposing genes and pathomechanisms have been hypothesized, the relationship between the two remains obscure.


The aim of this systematic review and meta-analysis was to investigate the association between psoriasis and MS.


We searched MEDLINE, Embase, and CENTRAL in July 2018 for case–control, cross-sectional, or cohort studies that examined either the odds or risk of psoriasis in subjects with multiple sclerosis. The risk of bias of included studies was assessed using the Newcastle–Ottawa Scale. A random-effects model meta-analysis was used to calculate the odds ratio (OR) for case–control/cross-sectional studies and hazard ratio (HR) for cohort studies.


We included 10 publications that reported a total of 11 studies (5 case–control, 4 cross-sectional and 2 cohort studies). The case–control and cross-sectional studies included 18,456 MS patients and 870,149 controls, while the two cohort studies involved 25,187 MS patients and 227,225 controls in total. Three studies were rated with a high risk of bias in comparability, non-response rate, and selection of controls. MS was associated with increased odds (OR 1.29; 95% confidence interval [CI] 1.14–1.45) and risk for psoriasis (HR 1.92; 95% CI 1.32–2.80).


Patients with MS display both increased prevalence and incidence of psoriasis.



We would like to thank the Sunflower Statistical Consulting Company, Kaohsiung, Taiwan for statistical advice.

Compliance with Ethical Standards

Conflict of interest

Mr Liu, Dr Tung, Ms Lee, Drs Chang and Wang, and Prof. Chi declare no conflict of interest.

Funding sources

No funding was received for the conduct of this study.


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.School of Medicine, College of MedicineFu Jen Catholic UniversityNew TaipeiTaiwan
  2. 2.Department of Medical Research and EducationCheng Hsin General HospitalTaipeiTaiwan
  3. 3.Department of NeurologyChang Gung Memorial HospitalLinkouTaiwan
  4. 4.College of MedicineChang Gung UniversityTaoyuanTaiwan
  5. 5.Department of DermatologyFar Eastern Memorial HospitalNew TaipeiTaiwan
  6. 6.Graduate Institute of Applied Science and Engineering, College of Science and EngineeringFu Jen Catholic UniversityNew TaipeiTaiwan
  7. 7.Department of DermatologyChang Gung Memorial Hospital, LinkouTaoyuanTaiwan

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