Article Figures & Data
Tables
Characteristic Psoriatic Arthritis, mean (SD) Control Group, n = 115, mean (SD) Age, yrs (n = 456) 57.4 (13.2) 65 ± 14.1 Age at onset of arthritis, yrs (n = 456) 39.5 (13.8) 56.8 ± 14.4 Age at onset of psoriasis, yrs (n = 456) 30.3 (15.4) NA Female, % 53.1 73 Rheumatoid factor-positive, % (n = 416) 2.9 64 Cyclic citrullinated antibody-positive, % (n = 363) 1.3 43 Phenotype, % (n = 316) Distal interphalangeal (DIP) 0.3 DIP and polyarthritis 0.3 Monoarthritis 1.7 Mutilans 1.9 Oligoarthritis 22 Oligoarthritis and spondyloarthritis 3.9 Polyarthritis 59.4 Polyarthritis and spondyloarthritis 8.5 Spondyloarthritis 1.9