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Table 1 Baseline characteristics stratified by AKI status

From: Fibroblast growth factor 23, endothelium biomarkers and acute kidney injury in critically-ill patients

Characteristic

No-severe AKI (n = 183)

Severe AKI (n = 82)

p

Demographics

Age, mean ± SD

51.2 ± 17.2

51.7 ± 19.1

0.82

Male, n (%)

94 (51.4)

40 (48.8)

0.70

BMI greater than 30 kg/m2

34 (18.6)

22 (26.8)

0.14

Diabetes mellitus

31 (16.9)

19 (23.1)

0.23

Charlson comorbidity index, median (IQR)

1 (1–2)

1 (1–3)

0.52

Baseline kidney function

Baseline sCr level, median (IQR)

0.6 (0.4–0.7)

0.9 (0.5–1.7)

< 0.001

eGFR, median (IQR)

109 (92–124)

85 (49–115)

< 0.001

Nephrotoxic drugs

28 (15.3)

27 (32.9)

0.002

Disease severity

Sepsis, n (%)

48 (26.2)

34 (41.5)

0.015

Surgical ICU

77 (42.1)

11 (13.4)

< 0.001

Mechanical Ventilation, n (%)

68 (37.2)

52 (63.4)

< 0.001

Vasoactive drugs (n, %)

49 (26.8)

50 (61.0)

< 0.001

APACHE II score, median (IQR)

15 (11–20)

21 (17–27)

< 0.001

Plasma FGF23, median (IQR)

135.3 (10.4–544.3)

927.1 (197.6–1232.6)

< 0.001

  1. AKI acute kidney injury, eGFR estimated glomerular filtration rate, sCr serum creatinine
  2. Age: years; sCr: mg/dL; eGFR: mL/min/1.73 m2; FGF23: RU/mL