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Table 3 CRP haplotype build, frequency and effect on serum C-reactive protein and Disease Activity Score in 28 joints at baseline and year 1 a

From: CRP genotype and haplotype associations with serum C-reactive protein level and DAS28 in untreated early rheumatoid arthritis patients

Haplotype

Frequency

Baseline CRP, effect (CI)

Year 1 CRP, effect (CI)

Baseline DAS28, effect (CI)

Year 1 DAS28, effect (CI)

H1 (CACT)

30.5%

96% (73 to 126)

99% (77 to 126)

102% (98 to 107)

105% (97 to 113)

H2 (TGCT)

25.7%

74% (55 to 99)

91% (70 to 118)

99% (94 to 103)

97% (89 to 106)

H3 (CGCG)

31.4%

100%

100%

100%

100%

H4 (CGCT)

6.2%

66% (41 to 107)

121% (80 to 184)

95% (88 to 103)

102% (89 to 116)

H5 (TGGT)

5.5%

64% (40 to 103)

86% (56 to 134)

101% (93 to 108)

110% (95 to 124)

  1. Haplotype defining SNPs = (rs1205, rs1130864, rs1800947, rs2808632). The effects of each haplotype were given relative to the most frequent haplotype, which was used as reference. CRP, C-reactive protein; DAS28, Disease Activity Score in 28 joints; SNP, Single-nucleotide polymorphism.