Table 1.

Characteristics of the patientsa

ClassificationnMedian Age (Range) (yr)Male (%)Nephrotic-Range Proteinuria (%)Median Serum Creatinine Concentration (Range) (mg/dl)
a FGS, focal segmental glomerulosclerosis.
Primary FGS1731 (14 to 84)76.570.61.1 (0.6 to 8.5)
Familial FGS732 (11 to 58)42.914.30.9 (0.4 to 2.4)
IgA nephropathy1646 (13 to 73)56.312.50.9(0.5 to 1.7)