Table 5.

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

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

AUC area under curve, CI confidence interval, TFC thoracic fluid content, PPV positive predictive value, NPV negative predictive value

*Denotes statistical significance