Table 1

Cohort characteristics after imputation and quality control

Total individualsSNPsNumber
of cases		Number
of controls		Number of malesNumber of females
UK75056 029 8912324518134334072
CHOP35136 338 131559295416711842
CLARITY9405 743 016362578460480

  • CHOP, Children’s Hospital of Philadelphia; CLARITY, ChiLdhood Arthritis Risk factor Identification sTudY; SNP, single nucleotide polymorphism.