In contrast, significantly more men vs women with r-axSpA had elevated CRP levels, regardless of TNFi use (TNFi users, 66.7% vs 48.6% [P = 0.0056]; no TNFi use, 55.5% vs 33.3% [P < 0.001]), and occurrences of uveitis (15.1% vs 4.1%; P = 0.0122) in TNFi users but not among non-users (Supplementary Table S3). Here, CRP is linked to uveitis.