Table 3

Comparison of the frequency of HLA-C alleles carried on HLA-B27 positive haplotype between patients with familial spondyloarthropathy and the French control population*

HLA-C allelePatients haplotypes (n=48)Control haplotypes (n=169)p/pcorr†OR (95% CI)
OR, odds ratio; CI, confidence interval.
*Except where otherwise indicated, values are the number (%) of haplotypes;†statistical comparisons were performed, using Fisher's exact test. pcorr=p value corrected for the number of comparisons.
C120 (41.7)69 (40.8)11 (0.5 to 2)
C221 (43.8)90 (53.3)0.260.7 (0.4 to 1.3)
C3 1 (2.1) 2 (1.2)0.531.8 (0.2 to 20)
C4 0 (0) 1 (0.6)11.2 (0.05 to 29)
C5 1 (2.1) 2 (1.2)0.531.8 (0.2 to 20)
C6 0 (0) 1 (0.6)11.2 (0.05 to 29)
C7 4 (8.3) 3 (1.8)0.04/0.355 (1.1 to 23.3)
C8 1 (2.1) 0 (0)0.2210.7 (0.4 to 267)