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Table 1 Demographic and clinical details of the study sample

From: Parsimonious and efficient assessment of health-related quality of life in osteoarthritis research: validation of the Assessment of Quality of Life (AQoL) instrument

   Total (N = 222)   Rheumatology Clinics
(N = 66)
  Orthopedic Waiting
List (N = 45)
  Community Group
(N = 111)
 
   No. % No. % No. % No. %
Age group (years) [missing values = 3] < 55 30 14 11 17 6 14 13 12
  55 to 59 29 13 9 14 3 7 17 15
  60 to 64 33 15 11 17 5 11 17 15
  65 to 69 35 16 8 12 8 18 19 17
  70 to 74 39 18 11 17 7 16 21 19
  75 to 79 32 15 6 9 10 23 16 15
  ≥ 80 21 10 9 14 5 11 7 6
Gender Female 149 67 44 67 24 53 81 73
  Male 73 33 22 33 21 47 30 27
BMI groupings*          
Underweight < 18.5 0 0 0 0 0 0 0 0
Normal 18.5 to 24.9 64 31 22 37 10 24 32 30
Overweight 25.0 to 29.9 76 37 26 43 18 43 32 30
Obesity I 30 to 34.9 40 19 9 15 11 26 20 19
Obesity II 35.0 to 39.9 19 9 2 3 3 7 14 13
Extreme Obesity [missing values = 14] ≥ 40 9 4 1 2 0 0 8 8
Most common joints affected Knee 155 70 44 67 28 62 83 75
  Hip 118 53 25 38 16 36 68 61
  Back 110 50 24 36 16 36 70 63
  Hand/wrist 109 49 25 38 16 36 68 61
  Hip, knee, foot/ankle 179 81 35 53 38 84 101 91
Lequesne scores grouped for severity of handicap (hip only) [n = 115, missing values = 14] Extremely severe 53 46 11 46 17 61 25 40
  Very severe 25 22 7 29 5 18 13 21
  Severe 21 18 2 8 6 21 13 21
  Moderate 13 11 2 8 0 0 11 17
  Mild 3 3 2 8 0 0 1 2
Self-rated general health Excellent health 15 7 8 12 2 4 5 5
  Very good health 60 27 19 29 10 22 31 28
  Good health 93 42 25 38 20 44 48 43
  Fair health 40 18 10 15 10 22 20 18
  Poor health 14 6 4 6 3 7 7 6
  1. * BMI classifications as per National Heart, Lung, and Blood Institute (USA) Guidelines