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Table 5 Accuracy of TFC in predicting weaning failure in cardiac and non-cardiac patients

From: Thoracic fluid content: a novel parameter for predicting failed weaning from mechanical ventilation

Parameter AUC (95% CI) Sensitivity Specificity PPV NPV Cutoff value
All patients 0.69 (0.57–0.80)* 65.2% 75.6% 60.0% 79.5% > 50 kΩ−1
Cardiac patients 0.93 (0.72–1.00)* 85.7% 92.3% 85.7% 92.3% > 50 kΩ−1
Non-cardiac patients 0.57 (0.42–0.72) 37.5% 92.9% 75.0% 72.2% > 65 kΩ−1
  1. AUC area under curve, CI confidence interval, TFC thoracic fluid content, PPV positive predictive value, NPV negative predictive value
  2. *Denotes statistical significance