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Table 2 Performance of clinical decision rule

From: Can we reduce CT scan and hospital costs in children with blunt trauma using four parameters?

  Patients without IAI (95%CI) Patients with IAI (95%CI)
Sensitivity 97.3% (95.6–98.5) 93.3% (68.1–99.8)
Specificity 98.2% (90.6–99.89) 90.1% (87.4–92.5)
Positive predictive value 99.8 (98.6–99.9) 20 (15.8–24.9)
Negative predictive value 80 (70.4–87.1) 99.8 (98.7–99.9)
Negative likelihood ratio 0.03 (0.02–0.05) 0.07 (0.01–0.4)
Accuracy 97.4 (95.8–98.5) 90.2 (87.5–92.5)
  1. IAI intraabdominal injury