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Table 5 Factors associated with the course of self-reported limitations in activities in knee OA: results from the multivariate analysis*

From: Vitality and the course of limitations in activities in osteoarthritis of the hip or knee

  Prognostic factors entered into the model
  Model with body functions, Model with body functions,
  comorbidity and cognitive functioning comorbidity, cognitive functioning and psychological and social factors
R2 0. 373 0.388
Significant prognostic factors in the model ↓   
WOMAC t0 0.539‡ 0.479 ‡
Reduced ROM hip external at one-year follow-up 0.120∫ 0.115 ∫
Increased pain at one-year follow-up -0.177† -0.172 †
Morbidity Count -0.180† -0.147 †
Vitality   0.157 †
  1. *standardized β's are presented; † p < 0.05; ‡ p < 0.01; ∫ p < 0.1
  2. OA: osteoarthritis; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; ROM: active assisted range of motion; R2: explained variance.