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Table 2 Baseline characteristics of the participants

From: CKD-EPI creatinine-cystatin C glomerular filtration rate estimation equation seems more suitable for Chinese patients with chronic kidney disease than other equations

Variable

Value

Age, years

45.0 (35.0, 55.0)

Gender, male, n (%)

814 (62.8%)

Weight, kg

62.0 (54.0, 70.0)

Height, cm

165.0 (158.0,170.0)

Body surface area, m2

1.7 ± 0.2

Body mass index, Kg/m2

22.9 (20.8, 25.4)

Serum creatinine, mg/dL

1.5 (1.0, 3.2)

Serum cystatin C, mg/L

1.7 (1.1, 2.9)

rGFR, mL/min/1.73 m2

46.8 (29.8, 68.3)

eGFR, mL/min/1.73 m2

 eGFRscr

49.7 (19.6, 85.8)

 eGFRcys

40.1 (19.2, 69.3)

 eGFRscr_cys

44.7 (18.6, 76.5)

 eGFRa_MDRD

48.9 (20.1, 81.0)

 eGFRc_MDRD

49.4 (19.1, 85.2)

 eGFR_MDRD

52.0 (21.6, 88.3)

rGFR based on CKD stage, mL/min/1.73 m2

 Stage 1 (n = 104)

101.4 (96.2, 111.2)

 Stage 2 (n = 331)

73.2 ± 8.6

 Stage 3 (n = 529)

43.5 (37.0, 51.5)

 Stage 4 (n = 220)

23.6 (19.5, 27.0)

 Stage 5 (n = 112)

10.8 (8.5, 13.2)

  1. eGFR estimated glomerular filtration rate, rGFR reference glomerular filtration rate, CKD chronic kidney disease, MDRD modification of diet in renal disease, CKD-EPI chronic kidney disease epidemiology collaboration