Table 1.

Patient demographics by group

Overall (n = 5238)Potential Kidney Donors (n = 583)Postnephrectomy Kidney Donors (n = 97)Native CKD Patients (n = 2324)Kidney Recipients (n = 1375)Other Organ Recipients (n = 859)
Mean age (SD)56.1 (14.8)45.4 (12.1)53.2 (10.9)59.8 (15.4)54.1 (13.9)57.1 (12.2)
Age <40 years, n (%)765.0 (15%)188.0 (32%)9.0 (9%)265.0 (11%)219.0 (16%)84.0 (10%)
Age >70 years, n (%)984.0 (19%)7.0 (1%)8.0 (8%)660.0 (28%)198.0 (14%)111.0 (13%)
Male, n (%)2900.0 (55%)256.0 (44%)36.0 (37%)1307.0 (56%)787.0 (57%)514.0 (60%)
African American race, n (%)98.0 (2%)16.0 (3%)2.0 (2%)48.0 (2%)22.0 (2%)10.0 (1%)
Mean height, cm (SD)171.5 (10.2)171.8 (9.7)170.9 (8.8)171.2 (10.3)171.5 (10.4)172.2 (10.1)
Mean weight, kg (SD)85.6 (21.4)82.8 (16.5)81.2 (18.8)87.1 (22.2)86.2 (22.3)82.8 (20.3)
Mean body mass index, kg/m2 (SD)29.0 (6.4)28.0 (4.7)27.7 (5.3)29.6 (6.7)29.2 (6.6)27.8 (5.8)
Mean serum creatinine concentration, mg/dl (SD)1.64 (1.06)0.91 (0.17)1.21 (0.26)2.04 (1.37)1.48 (0.62)1.36 (0.52)
Mean creatinine clearance, ml/min per 1.73 m2 (SD)64.6 (31.4)101.8 (21.6)70.4 (20.2)56.1 (32.4)62.7 (23.6)65.1 (28.3)
Mean eGFR by MDRD equation, ml/min per 1.73 m2 (SD)51.8 (25.2)79.7 (15.4)54.8 (13.1)43.9 (26.9)50.4 (18.0)55.8 (22.4)
Mean eGFR by CKD-EPI equation, ml/min per 1.73 m2 (SD)55.2 (27.2)88.7 (16.3)60.1 (15.6)45.8 (28.3)53.9 (18.9)59.3 (23.4)
Mean mGFR, ml/min per 1.73 m2 (SD)55.9 (29.7)98.9 (20.1)65.8 (17.4)46.2 (29.5)52.3 (19.5)57.3 (24.1)
Percentage of eGFR by MDRD equation within 30% of mGFR77.6%75.8%82.5%75.2%80.1%80.6%
Percentage of eGFR by CKD-EPI equation within 30% of mGFR78.4%88.7%93.8%75.0%78.4%78.5%
  • CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; MDRD, Modification of Diet in Renal Disease; eGFR, estimated GFR; mGFR, measured GFR.