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Table 2 Distribution of HLA-DRB1 alleles in the study population

From: Influence of HLA DRB1 alleles in the susceptibility of rheumatoid arthritis and the regulation of antibodies against citrullinated proteins and rheumatoid factor

   RA
(n = 235)
Non-RA
(n = 173)
Controls
(n = 269)
SE *0101 49 (10.4%) 15 (4.3%) 32 (5.9%)
  *0102 17 (3.6%) 13 (3.7) 16 (3.0%)
  *0401 27 (5.7%) 10 (2.9%) 23 (4.3%)
  *0404 19 (4%) 7 (2.0%) 10 (1.8%)
  *0405 27 (5.7%) 9 (2.6%) 17 (3.1%)
  *0408 4 (0.8%) 5 (1.4%) 8 (1.5%)
  *1001 18 (3.8%) 7 (2.0%) 18 (3.3%)
  *1402 4 (0.8%) 2 (0.6%) 3 (0.5%)
DR3 *03 43 (9.1%) 54 (15.6%) 55 (10.2%)
DERAA *0103 4 (0.8%) 9 (2.6%) 14 (2.6%)
  *0402 7 (1.5%) 6 (1.7%) 10 (1.8%)
  *1102 6 (1.3%) 5 (1.4%) 11 (2.0%)
  *1103 7 (1.5%) 7 (2.0%) 12 (2.3%)
  *1301 25 (5.3%) 20 (5.8%) 27 (5.0%)
  *1302 11 (2.3%) 1 (0.3%) 5 (0.9%)
  *1304 - - -
  1. Percentages relate to number of total alleles.
  2. Data are presented as number and percentage of patients in each group. DERAA, HLA with DERAA-encoding alleles; DR3, HLA-DR3; Non-RA, other arthropathies; RA, rheumatoid arthritis; SE, shared epitope alleles.