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Table 4 Number of patients displaying gout characteristics

From: Validity of gout diagnosis in Swedish primary and secondary care - a validation study

Gout characteristics Primary care group (n = 262) Rheumatology group (n = 132)
Men Women Men Women
n = 198 (%) n = 64 (%) n = 106 (%) n = 26 (%)
Increaseda serum uric acid 139 (70/89)1,b 41 (64/87)1,c 82 (77/80)1,d 15 (58/65)1,e
Analysis of MSU crystals in SF (%) 6 (3) 0 34 (32) 1 (4)
Presence of tophi (%) 3 (2) 3 (5) 27 (23) 4 (15)
  1. aMale >420 μmol/L, female >360 μmol/L
  2. b41 missing values
  3. c17 missing values
  4. d3 missing values
  5. e4 missing values
  6. 1Percentage defined as the proportion with abnormally high values out of: 1) all patients reviewed and 2) those with an available test results