From:  Acute kidney injury in gout: prevalence and risk factors through two decades

 Frequency of discrete variables from available data.

VariableN%
Previous ULT prescription568/1,20747.1
Polyarticular involvement (> 4 joints ever)417/1,20734.5
Subcutaneous tophi399/1,20733.1
Ultrasonographic tophi772/1,12068.9
Joint damage in plain X-ray684/1,20756.7
Ethanol intake > 15 g/day369/1,20730.6
Arterial hypertension815/1,20767.5
Diabetes mellitus333/1,20727.6
Hyperlipidemia719/1,20759.6
Previous vascular event404/1,20733.5
CKD (eGFR < 60 mL/min)480/1,20739.8
Triple whammy477/1,20739.5

Ultrasonography was available for most, but not all patients. ULT: urate-lowering therapy; CKD: chronic kidney disease; eGFR: estimated glomerular filtration rate.