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Table 5 Mean MCS and PCS values by flare frequency and the presence of tophi, adjusted for age, gender, and length of illness

From: Tophi and frequent gout flares are associated with impairments to quality of life, productivity, and increased healthcare resource use: Results from a cross-sectional survey

  Number of self-reported flares in past 12 months
0/don't recall 1 to 2 3 4 to 5 6+
SF-12 MCS
  No tophi 50.44 50.32 50.07 47.35 46.84
  Not sure 47.20 47.07 46.83 44.11 43.59
  1+ tophi 46.86 46.73 46.49 43.77 43.25
SF-12 PCS
  No tophi 44.05 43.72 40.26 39.17 36.08
  Not sure 41.06 40.73 37.27 36.17 33.09
  1+ tophi 40.20 39.87 36.40 35.31 32.23
  1. Note: MCS: Mental Component Summary; PCS: Physical Component Summary.