Abstract
BACKGROUND: Juvenile idiopathic arthritis associated uveitis (JIA-U) is the most common extra-articular manifestation of juvenile idiopathic arthritis (JIA) and carries considerable risk to vision. The aim of this systematic review was to synthesise evidence of environmental risk factors for JIA-U and identify risk factors which may be modifiable or used to stratify JIA patients.
METHODS: This systematic review was carried out in accordance with PRISMA guidelines. Four online databases - Cumulative Index of Nursing and Allied Health Literature, Web of Science, MEDLINE and Embase - were searched from database inception to 12th August 2020. Identified studies were screened by two independent reviewers against pre-defined inclusion and exclusion criteria. Data was extracted from all primary studies meeting inclusion criteria and independently checked.
RESULTS: We identified three studies from 895 unique records which met the inclusion criteria, each examining a different environmental risk factor. This systematic review includes 973, predominantly female, participants with JIA across these three studies. The use of allergy medication or documentation of "allergy"/"allergic" in the medical records was associated with an increased risk of JIA-U in all models presented. Vitamin D sufficiency was associated with reduced risk of JIA-U. There was insufficient evidence to support an association between seasonality and JIA-U.
CONCLUSIONS: This review identifies a potential role for allergy and vitamin D in JIA-U. It also illustrates the paucity of data regarding environmental risk factors for JIA-U and highlights the need for further research to both identify additional risk factors and replicate existing findings.
Original language | English |
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Article number | 15 |
Number of pages | 9 |
Journal | Journal of ophthalmic inflammation and infection |
Volume | 11 |
Issue number | 1 |
DOIs | |
Publication status | Published - 24 May 2021 |
Bibliographical note
Funding Information:The authors wish to acknowledge Catherine Borwick (Information Specialist, University of Bristol) for her assistance during the design of search strategies for this review.
Funding Information:
This research was funded in whole, or in part, by the Wellcome Trust [203918/Z/16/Z to SLNC]. For the purpose of Open Access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.
Funding Information:
This work is also supported by the Medical Research Council and the University of Bristol [MC_UU_00011/5 to CLR]. The funders had no input in the protocol design or the undertaking of this systematic review.
Publisher Copyright:
© 2021, The Author(s).
Keywords
- Juvenile idiopathic arthritis
- Uveitis
- Risk factors
- Environment
- Vitamin D
- Season
- Allergy