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Table 4 Comparison of the prognostic accuracy of the A-DROP system and CURB-65 score and PSI

From: Non-HIV Pneumocystis pneumonia: do conventional community-acquired pneumonia guidelines under estimate its severity?

Sensitivity for mortality, %
  A-DROP scores 3–5 12.5
  CURB-65 scores 3–5 0
  PSI risk classes IV- V 87.5
Specificity for mortality, %
  A-DROP scores 3–5 84.6
  CURB-65 scores 3–5 84.6
  PSI risk classes IV- V 46.2
Positive predictive values for mortality, %
  A-DROP scores 3–5 33.3
  CURB-65 scores 3–5 0
  PSI risk classes IV- V 50
Negative predictive values for mortality, %
  A-DROP scores 3–5 61.1
  CURB-65 scores 3–5 57.9
  PSI risk classes IV- V 85.7
  1. *In PSI, relations of risk classes to net points are as follows:
  2. I: 0, II: 1–70, III: 71–90, IV: 91–130, V: >131.
  3. Table 4 legend - PCP, Pneumocystis pneumonia; PSI, pulmonary severity index.