Figure 1.

Univariable odds ratios for the presence of subclinical joint inflammation in patients with reported joint swelling. (A) Patients evaluated with MRI from the CSA Leiden cohort (n = 352). (B) patients evaluated with US from the CSA Rotterdam cohort (n = 100). MRI was scored positive only if <5% of the age-matched healthy volunteers had inflammation on a specific joint/tissue. US was scored positive if GS was ≥2 or PD was ≥1. US GS indicates whether a patient had only GS ≥ 2 in at least one joint; US PD indicates whether a patients had only PD ≥ 1 in at least one joint. Odd Ratios based on univariate analysis (also see Supplementary Table S3, available at Rheumatology online). GS: grey scale; PD: power Doppler