Table 3 Risk of cartilage loss by synovitis (adjusted odds ratio, 95% CI)*
Odds ratio for loss of cartilage in medial tibiofemoral compartmentOdds ratio for loss of cartilage in lateral tibiofemoral compartmentOdds ratio for loss of cartilage in patellofemoral compartment
Baseline summary synovitis score
    Summary synovitis score (0–2)ReferentReferentReferent
    Summary synovitis score (3–4)2.9 (1.3, 6.5)0.9 (0.4, 2.2)1.3 (0.5, 3.3)
    Summary synovitis score (5–9)1.5 (0.6, 4.1)1.0 (0.3, 2.9)0.9 (0.2, 3.9)
Change in synovitis score
    Improvement in synovitis scoreReferentReferentReferent
    Stable synovitis score0.7 (0.3, 1.6)0.6 (0.2, 1.7)1.9 (0.6, 5.7)
    Worsening synovitis score0.6 (0.2, 1.3)1.1 (0.5, 2.9)2.5 (0.8, 7.5)
  • *Analyses adjusted for age, sex, BMI, cartilage score at baseline, effusion score (0–3), bone-marrow lesion score (WORMS), change in bone-marrow lesion score and change in effusion score.