Table 4 Diagnostic Accuracy of Laboratory CRP in Identifying Infants with Bacterial Infections with 95% Confidence Intervals
CRP cut-off 20 mg/l | CRP cut-off 50 mg/l | CRP cut-off 100 mg/l | ||||
|---|---|---|---|---|---|---|
Invasive Bacterial Infection | All Bacterial Infection | Invasive Bacterial Infection | All Bacterial Infection | Invasive Bacterial Infection | All Bacterial Infection | |
Sensitivity | 1.00 (0.40 to 1.00) | 0.93 (0.64 to 1.00) | 1.00 (0.40 to 1.00) | 0.62 (0.32 to 0.85) | 0.50 (0.01 to 0.91) | 0.21 (0.07 to 0.19) |
Specificity | 0.86 (0.78 to 0.92) | 0.94 (0.87 to 0.97) | 0.96 (0.89 to 0.98) | 0.99 (0.94 to 1.00) | 0.99 (0.95 to 1.00) | 1.00 (0.96 to 1.00) |
Positive Predictive Value | 0.20 (0.07 to 0.44) | 0.65 (0.41 to 0.84) | 0.44 (0.15 to 0.77) | 0.89 (0.51 to 0.99) | 0.67 (0.13 to 0.98) | 1.00 (0.31 to 1.00) |
Negative Predictive Value | 1.00 (0.95 to 1.00) | 0.99 (0.94 to 1.00) | 1.00 (0.96 to 1.00) | 0.96 (0.9 to 1.00) | 0.98 (0.93 to 1.00) | 0.91 (0.83 to 0.95) |