Table 1. Median number of affected DIP and PIP joints and the association to presence of BMLs (logistic regression analyses with Generalized Estimating Equations)

Median (IQR) affected joints (range 0-8)Associations to BMLs (OR, 95% CI)
Univariate models*Multivariate model*
(separate models)(one model)
Osteophytes3 (1–5)4.9 (3.2–7.4)
JSN (grade 2–3)2 (0–4)10 (4.2–23)4.4 (2.2–9.0)
Erosions0.5 (0–3)4.1 (2.8–6.2)
Cysts0 (0–1)2.9 (1.4–5.9)2.5 (0.9–6.5)
Sclerosis0 (0–0)2.1 (0.6–6.7)
Malalignment0 (0–1)3.1 (2.1–4.5)2.1 (1.4–3.4)
Clinical soft tissue swelling3 (2–5)4.7 (2.9–7.7)2.6 (1.4–4.7)
  • *Adjusted for age and sex.