Table 4.

Age at RA diagnosis and duration of the disease in patients stratified according to AR genotypes.

Age of RA Diagnosis, yrsDuration of RA, yrs
GenotypenMean ± SDMedianp*Mean ± SDMedianp*
S-S7643.0 ± 14.64511.8 ± 9.510
S-L14847.6 ± 13.048.50.070**11.2 ± 9.3100.67
L-L10147.7 ± 11.74710.8 ± 9.28

  • ↵* Kruskal-Wallis test.

  • ↵** p = 0.021 for S-S vs L-L + S-L; Mann-Whitney test. S: short allele (< 22 CAG repeats); L: long allele (≥ 22 CAG repeats); RA: rheumatoid arthritis.