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Table 1 Item percent missing, item means and standard deviations (SD)a

From: Thai SF-36 health survey: tests of data quality, scaling assumptions, reliability and validity in healthy men and women

Scale SF-36 Item   % Missing Mean SD
Physical Functioning (PF)      
  Vigorous activities PF1 1.1 1.99 0.64
  Walking more than a kilometer PF7 1.0 2.22 0.73
  Climbing several flights of stairs PF4 1.0 2.51 0.63
  Bending, kneeling, stooping PF6 1.0 2.56 0.59
  Lifting or carrying groceries PF3 1.2 2.56 0.61
  Moderate activities PF2 0.5 2.58 0.57
  Walking more than 100 m PF8 0.7 2.65 0.58
  Climbing one flight of stairs PF5 1.3 2.74 0.50
  Walking 100 m PF9 1.3 2.76 0.50
  Bathing or dressing PF10 0.5 2.90 0.33
Role-Physical (RP)      
  Accomplished less than would like RP2 0.1 1.82 0.38
  Difficulty performing work/activities RP4 0.2 1.76 0.43
  Cut down time spent on work RP1 0.2 1.83 0.38
  Limited in kind of work/activities RP3 0.2 1.88 0.33
Bodily Pain (BP)      
  Intensity of bodily pain BP1 0.3 4.51 1.11
  Extent pain interfered with work BP2 0.7 4.24 0.76
General Health (GH)      
  Rating of general health GH1 0.0 3.07 0.78
  My health is excellent GH5 0.7 3.58 1.09
  I seem as healthy as anyone I know GH3 0.3 3.96 0.98
  I seem to get sick easier than others GH2 0.7 3.76 1.12
  I expect my health to get worse GH4 0.7 3.80 1.12
Vitality (VT)      
  Have a lot of energy VT2 0.5 3.62 0.98
  Full of life VT1 0.5 3.75 0.93
  Feel worn out VT3 0.6 4.52 0.88
  Feel tired VT4 0.2 4.55 0.91
Social Functioning (SF)      
  Extent health problems interfered SF1 0.5 4.31 0.75
  Frequency health problems interfered SF2 0.7 3.94 0.98
Role-Emotional (RE)      
  Accomplished less than would like RE2 0.5 1.77 0.42
  Cut down time spent on work RE1 0.4 1.78 0.42
  Work not done as carefully as usual RE3 0.5 1.87 0.34
Mental Health (MH)      
  Felt calm and peaceful MH3 0.5 3.30 0.93
  Been a happy person MH5 0.6 4.11 0.98
  Been a very nervous person MH1 0.2 4.35 0.85
  Felt down hearted and blue MH4 0.5 4.85 0.92
  Felt down in the dumps MH2 0.5 4.92 0.92
Health Transition (HT)      
  Change in health from one year ago HT 0.2 2.88 0.84
  1. aItems within a scale are ordered according to their relative expected means[20], with items having the highest expected mean at the top.