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Table. 1.

Table. 1.

Characteristics of the study patients

Variable Overall
N 1,654
Age, yr 61 (50–69)
Age category, N (%)
< 50 yr 395 (23.9)
50–64 yr 617 (37.3)
≥ 65 yr 642 (38.8)
Height, cm 164.5 (156.6–170.0)
Weight, kg 65.0 (57.1–72.6)
BMI, kg/m2 24.3 (22.1–26.6)
BMI category, N (%)
< 20 kg/m2 151 (9.1)
20 to < 25 kg/m2 817 (49.4)
25 to < 30 kg/m2 584 (35.3)
≥ 30 kg/m2 102 (6.2)
Creatinine, mg/dL 1.00 (0.80–1.45)
mGFR, mL/min/1.73 m2 69.1 (43.3–92.1)
mGFR category, N (%)
< 15 mL/min/1.73 m2 114 (6.9)
15–29 mL/min/1.73 m2 142 (8.6)
30–44 mL/min/1.73 m2 183 (11.1)
45–59 mL/min/1.73 m2 223 (13.5)
60–89 mL/min/1.73 m2 544 (32.9)
≥ 90 mL/min/1.73 m2 448 (27.1)
eGFR, mL/min/1.73 m2
CKD-EPI 72.3 (46.8–92.4)
2021 CKD-EPI 76.6 (49.8–97.1)
EKFC 69.5 (45.3–88.2)

Continuous variables are expressed as median (25 percentile to 75 percentile) because they are not normally distributed. Conversion factors for units: serum creatinine in mg/dL to μmol/L, 88.4×.

Abbreviations: BMI, body mass index; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; eGFR, estimated glomerular filtration rate; EKFC, European Kidney Function Consortium; mGFR, measured glomerular filtration rate.

Ann Lab Med 2023;43:244~252 https://doi.org/10.3343/alm.2023.43.3.244

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