TableĀ 3

Test characteristics for the IMPACT rule for predicting in-hospital mortality

Test characteristicEstimate (95% CI)
Sensitivity, %92.4 (90.7 to 93.8)
Specificity, %33.2 (32.7 to 33.7)
PPV, %4.6 (4.4 to 4.9)
NPV, %99.2 (99.0 to 99.4)
AUC0.74 (0.73 to 0.76)
  • AUC, area under the receiver operator characteristic curve; IMPACT, In-hospital Mortality for PulmonAry embolism using Claims daTa; NPV, negative predictive value; PPV, positive predictive value.