Patient Characteristics According to the Presence of CT-ILD Features.

Values are mean ± standard deviation or median (interquartile range) unless otherwise noted.RA = rheumatoid arthritis; RF = rheumatoid factor; CCP2 = 2nd generation anti-cyclic citrullinated peptide antibody; DAS = disease activity score; CRP = C-reactive protein; IL = interleukin; SHS = Total modified Sharp-van der Heijde Score; HAQ = Health Assessment Questionnaire Disability Index; TNF = tumor necrosis factor; DMARD = disease modifying anti-rheumatic drug; ILD = interstitial lung disease; PFT = pulmonary function testing; Impaired Diff = impaired diffusion.