Figure 3.

Urinary protein-to-creatinine screening results for all patients stratified by age group. Significant proteinuria was quantified as urinary protein-to-creatinine ratio >0.50 mg protein/mg creatinine for children ages ≤24 months and >0.20 mg protein/mg creatinine for children ages >24 months. If proteinuria was identified, urinalysis was repeated three times in a first morning sample to rule out an orthostatic effect. In case of orthostatic proteinuria, the participant was scored negative for proteinuria. uP/C ratio, urinary protein-creatinine ratio.