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Table 3 Semi-quantitative culture scoring for the diagnosis of VAP

From: Evaluation of semi-quantitative scoring of Gram staining or semi-quantitative culture for the diagnosis of ventilator-associated pneumonia: a retrospective comparison with quantitative culture

  Sensitivity (%) Specificity (%) PPV (%) NPV (%) PLR NLR Kappa (95% CI)
≥2+ 96 40 69 88 1.6 0.1 0.4 (0.25–0.54)
≥3+ 59 86 85 60 4.2 0.48 0.43 (0.29–0.57)
  1. PPV positive predictive value, NPV negative predictive value, PLR positive likelihood ratio, NLR negative likelihood ratio.
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Journal of Intensive Care

ISSN: 2052-0492