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Table 1 Characteristics of study participants

From: Clinically important improvement in the WOMAC and predictor factors for response to non-specific non-steroidal anti-inflammatory drugs in osteoarthritic patients: a prospective study

Number 173  
  Mean (SD) KS Z
Age (years) 57.1 (10.1) 0.874
Weight (kg) 76.2 (12.1) 0.875
Height (cm) 155.5 (5.4) 0.966
Body mass index (kg/m2) 31.1 (4.8) 0.770
Joint space width 3.2 (1.2) 0.910
EQ 5D index at baseline 0.2 (0.1) 0.984
EQ 5D after treatment 0.6 (0.3) 0.822
VAS EQ 5D at baseline 40 (18) 0.604
VAS EQ 5D after treatment 67 (18) 0.597
WOMAC at baseline 66 (20) 0.595
WOMAC after treatment 34 (17) 0.628
  Median (quartiles)  
WOMAC raw change within transition scale at endpoint   
   Much better 13 (12-22) 5.574*
   Slightly better 28 (13-39) 3.765*
   No change 17 (8-22) 5.318*
   Slightly worse 1 (-8-11) 6.450*
Number of pregnancies 4(1-6) 1.366*
Duration of OA (month) 4 (2-10) 2.001*
  N(%)  
Female 125 (72.3) -
Existence of previous knee injuries 26 (15.1) -
Existence of back pain 58 (33.5) -
Co morbidities 101 (58.4) -
Smokers 12 (6.9) -
High level of education 61 (35.3) -
  1. KS : Komorgorov Smirnov * P < 0.05
  2. Normality of the continuous data was tested with the Komorgorov Smirnov test