Our study found an overall kidney disease prevalence of 27.4% (95% CI: 20.6–35.1%) when using any of three study parameters (urine NGAL, eGFR <60 mL/min/1.73 m2, and eGFR between 60 and <90 mL/min/1.73 m2 with either hematuria or proteinuria). This evidence concerns the gene LCN2 and kidney disorder.