Table 3

Mean CAG repeats by rheumatoid factor(RF) positivity, rheumatoid nodule (RN) positivity and sex

Men RAWomen RA
RF (+) RF (−) RF (+) RF (−)
Number of subjects83725818
Mean CAG repeats22.621.622.722.2
95%CI for difference−1.43, 3.40−0.39, 1.50
p value0.420.25
RN (+) RN (−) RN (+) RN (−)
Number of subjects127833243
Mean CAG repeats22.422.522.622.7
95%C1 for difference−1.98, 1.84−0.67, 0.78
p value0.940.88