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Table 2 The effect of demographic characteristics on clinically relevant variation in function over two years

From: The effect of patient characteristics on variability in pain and function over two years in early knee osteoarthritis

  KOOS Activities of Daily Living SF-36 Physical Function
Characteristic Prevalence of clinically relevant change Unadjusted for baseline values Adjusted for baseline values Prevalence of clinically relevant change Unadjusted for baseline values Adjusted for baseline value
  N % OR OR 95% CI N % OR OR 95% CI
Age
   <46† 6/49 12     21/49 43    
   46–56 19/47 40 4.5 3.8 1.2–12.4 24/45 53 1.2 0.9 0.3–2.4
   >56 13/47 28 2.5 1.8 0.5–6.2 23/46 50 1.3 0.5 0.2–1.4
Gender
   men† 32/120 27     54/118 46    
   women 6/23 26 1.2 0.7 0.2–2.3 14/22 64 2.4 1.9 0.6–6.1
BMI (kg/m2)
   <25† 9/61 15     21/60 35    
   25–29.9 22/64 34 1.4 2.0 0.5–3.9 39/63 62 3.2 2.4 1.0–5.7
   ≥30 7/16 44 1.4 1.8 0.3–6.3 6/15 40 1.2 0.1 0.2–0.9
  1. KOOS = Knee injury and Osteoarthritis Outcome Score, OR = odds ratio, 95% CI = 95% confidence interval, BMI = body mass index.
  2. * All risk factors listed are entered simultaneously in each model.
  3. † Reference category.