Table 4

Comparison of allele carrier frequencies in RA cases and controls in accordance with the du Montcel classification

Allele

RA patients, n (%) (n = 143)

Controls*, n (%) (n = 1,104)

Χ2 test

OR (95% CI)

P value


S1

55 (39)

853 (77)

40.3

0.4 (0.3 to 0.5)

<0.0001

S2

28 (20)

110 (10)

10.3

2.0 (1.3 to 3.2)

0.0013

S3D

38 (27)

361 (33)

0.1

0.9 (0.6 to 1.3)

0.7060

S3P

61 (43)

313 (28)

9.6

1.6 (1.2 to 2.2)

0.0019

X

64 (45)

616 (56)

3.6

0.8 (0.6 to 1.0)

0.0571


RA = rheumatoid arthritis. du Montcel classification is from du Montcel et al. [7]. *Data from Robinson and colleagues [31,32].

Meyer et al. Arthritis Research & Therapy 2011 13:R160   doi:10.1186/ar3479

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