Table 5 |
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|
Diagnostic efficiency values for serum creatinine, cystatin C, and beta2-microglobulin to detect early renal disfunction by Schwartz formula |
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|
Serum creatinine |
Cystatin C |
Beta2-microglobulin |
|
|
|
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|
Cutoff value |
0.4 mg/dl |
0.6 mg/l |
1.5 mg/l |
|
Sensitivity |
44% (38%–50%) |
88% (83%–94%) |
100% (94%–100%) |
|
Specificity |
56% (52%–59%) |
50% (46%–53%) |
50% (46%–53%) |
|
Positive likelihood ratio |
1.0 (1.0–1.0) |
1.7 (1.7–1.8) |
2.0 (1.9–2.0) |
|
|
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|
Sensitivity, specificity, and positive likelihood ratio (95% confidence interval) for serum creatinine, cystatin C, and beta2-microglobulin to diagnose renal dysfunction (creatinine clearance estimation by Schwartz formula less than 80 ml/minute per 1.73 m2) are shown. |
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|
Herrero-Morín et al. Critical Care 2007 11:R59 doi:10.1186/cc5923 |
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