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Table 3 Comparison of groups with creatinine clearance estimation by Schwartz formula lower and higher than 80 ml/minute per 1.73 m2

From: Cystatin C and beta2-microglobulin: markers of glomerular filtration in critically ill children

 

Schwartz < 80 ml/minute per 1.73 m2

Schwartz > 80 ml/minute per 1.73 m2

P value

 

N

Mean (95% CI)

N

Mean (95% CI)

 

Schwartz

9

68.8 (63.2–74.3)

16

124.6 (105.8–143.5)

< 0.01

CrC

9

54.5 (48.4–60.6)

16

88.5 (61.8–115.2)

< 0.05

Serum Cr (mg/dl)

9

0.45 (0.35–0.56)

16

0.41 (0.32–0.49)

NS

Serum cystatin C (mg/l)

9

0.82 (0.67–0.97)

16

0.62 (0.45–0.79)

NS

Serum B2M (mg/l)

9

2.73 (1.94–3.52)

16

1.77 (1.23–2.33)

< 0.05

  1. Creatinine clearance estimation by Schwartz formula (Schwartz), creatinine clearance (CrC), serum creatinine (Cr), serum cystatin C, and serum beta2-microglobulin (B2M) in patients with renal dysfunction (Schwartz less than 80 ml/minute per 1.73 m2) and normal renal function are shown. CI, confidence interval; N, number of patients; NS, not significant.
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