Fig. 1From: Occurrence of anterior uveitis in patients with spondyloarthritis treated with tumor necrosis factor inhibitors: comparing the soluble receptor to monoclonal antibodies in a large observational cohortThe time intervals involved in the statistical analyses. a The last year before and first year after initiating the first-line TNF inhibitor. b The pre-treatment and first-line TNF inhibitor treatment periods. c The pre-treatment and all therapeutic lines of TNF inhibitor treatment periodsBack to article page