Table 1.
n (col %) or Median (IQR) |
All |
Male |
Female |
---|---|---|---|
n = 212 (100%) | n = 80 (38%) | n = 132 (62%) | |
Age, y | 54 (43-61) | 49 (37-58) | 57 (47-62) |
Race | |||
White | 138 (65%) | 46 (58%) | 92 (70%) |
Black/African American | 19 (9%) | 11 (14%) | 8 (6%) |
All others | 55 (26%) | 23 (29%) | 32 (24%) |
Height, cm | 168 (163-175) | 175 (170-180) | 163 (159-170) |
Weight, kg | 79 (66-88) | 76 (63-85) | 82 (74-93) |
Body mass index, kg/m2 | 27 (24-31) | 27 (24-30) | 28 (24-32) |
Body surface area, m2 | 2.06 (1.90-2.19) | 2.16 (2.05-2.30) | 1.98 (1.87-2.13) |
24-h creatinine excretion, g | 1.29 (1.06-1.67) | 1.75 (1.39-2.22) | 1.16 (0.96-1.36) |
Weight-indexed 24-h creatinine excretion, mg/kg | 17.4 (13.5-21.8) | 21.9 (16.5-26.0) | 15.9 (12.8-18.7) |
Serum creatinine, mg/dL | 0.89 (0.76-1.00) | 1.07 (0.93-1.15) | 0.81 (0.73-0.90) |
Cystatin C, mg/L | 0.8 (0.8-0.9) | 0.8 (0.8-1.0) | 0.8 (0.7-0.9) |
GFR assessments, mL/min/1.73 m2 | |||
Measured GFR (iothalamate) | 107 (95-120) | 111 (100-123) | 106 (91-117) |
CKD-EPI 2021 (creatinine) | 90 (77-104) | 88 (79-103) | 91 (76-104) |
CKD-EPI 2012 (cystatin C) | 99 (83-110) | 105 (86-116) | 98 (82-105) |
CKD-EPI 2021 (combined) | 97 (85-111) | 85 (76-96) | 106 (94-115) |
Timed creatinine clearance | 73 (58-89) | 67 (54-86) | 75 (63-89) |
Abbreviations: CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; GFR, glomerular filtration rate.