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Table 1 Associations between JIA subtypes and different HLA alleles.

From: A comprehensive review of the genetics of juvenile idiopathic arthritis

Phenotype Alleles conferring susceptibility Protective alleles
Oligoarticular A2, DRB1*01, DRB1*08, DRB1*11, DRB1*13, DPB1*02, DQA1*04, DQB1*04 DRB1*04, DRB1*07, DQA1*03
Polyarticular RF+ DRB1*04, DQA1*03, DQB1*03 DQA1*02
Polyarticular RF- A2, DRB1*08, DQA1*04, DPB1*03  
Psoriatic DRB1*01, DQA1*0101 DRB1*04, DQA1*03
ERA B27, DRB1*01, DQA1*0101, DQB1*05  
Systemic DRB1*04, DRB1*11, DQA1*05