Table 2

Presence of a written gout diagnosis (defined gold standard) for each criterion and associated positive predicted value (PPV) (a patient can appear in multiple criteria) among 518 manually reviewed charts

CriterionTotalGoutNo goutEquivocalPPV (95% CI)
 Problem list1411374097.2% (92.9% to 98.9%)
 Joint aspiration48462095.8% (86.0% to 98.8%)
 ICD-10-GM codes13212110191.7% (85.7% to 95.3%)
 Drugs462336299772.7% (68.5% to 76.6%)
 Documents38330768880.2% (75.9% to 83.8%)
 Radiology reports47368376.6% (62.8% to 86.4%)
Combination of criteria
 Problem or aspiration or ≥2 other criteria26224216492.4% (88.5% to 95.0%)
  • ICD-10-GM, German Modification of the International Classification of Disease 10th revision.