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Table 3 Laboratory data stratified by UACR values

From: Association of serum levels of FGF23 and α-Klotho with glomerular filtration rate and proteinuria among cardiac patients

  UACR <30 mg/g cr UACR 30–300 mg/g cr UACR ≥300 mg/g cr  
Variables (n = 135) (n = 40) (n = 10) P value
eGFR, mL/min/1.73 m2   51 ± 14   48 ± 17   39 ± 17 0.039
Urine albumin creatinine ratio 9 (5–15) 76 (51–154) 1241 (719–2045) <0.001
Serum cCa, mg/dL 9.1 (8.8 - 9.4) 9.3 (8.8 - 9.5) 9.3 (8.8 - 9.5) 0.530
Serum inorganic phosphate, mg/dL 3.30 (2.90 - 3.70) 3.30 (2.90 - 3.50) 3.65 (3.30 - 3.98) 0.042
Urine calcium creatinine ratio 0.07 (0.04 - 0.12) 0.07 (0.03 - 0.15) 0.07 (0.02 - 0.10) 0.789
Fractional excretion of calcium, % 0.73 (0.43 - 1.06) 0.71 (0.36 - 1.50) 0.74 (0.38 - 1.33) 0.984
Urine phosphate creatinine ratio   0.47 ± 0.19   0.52 ± 0.23   0.59 ± 0.25 0.088
TRP, %   87.2 ± 5.7   84.0 ± 8.0   80.6 ± 9.6 0.001
TmP/GFR, mg/dL 3.0 (2.6 - 3.5) 2.7 (2.2 - 3.4) 2.9 (2.6 - 3.5) 0.186
FGF23, pg/mL 46.8 (34.3 - 67.0) 44.1 (29.9 - 68.5) 58.3 (47.0 - 86.3) 0.330
α-Klotho, mg/dL 345 (223–468) 330 (200–474) 358 (218–589) 0.736