From: Cystatin C and beta2-microglobulin: markers of glomerular filtration in critically ill children
Serum creatinine | Cystatin C | Beta2-microglobulin | |
---|---|---|---|
Cutoff value | 0.4 mg/dl | 0.6 mg/l | 1.5 mg/l |
Sensitivity | 42% (39%–46%) | 85% (82%–89%) | 85% (82%–89%) |
Specificity | 54% (49%–59%) | 63% (58%–68%) | 54% (49%–59%) |
Positive likelihood ratio | 0.94 (0.94–0.95) | 2.3 (2.3–2.3) | 1.8 (1.8–1.8) |