Diagnostic value of cardiopulmonary ultrasound in elderly patients with acute respiratory distress syndrome

BMC Pulmonary Medicine

Table 6 ROC curve analysis of ARDS diagnosis with cardiopulmonary ultrasound combined with NT-proBNP or PaO₂/FiO₂ ratio

Combination Index	Cutoff Value	Sensitivity	Specificity	Youden index	AUROC
Cardiopulmonary ultrasound +NT-proBNP day1	0.556	0.879	0.889	0.768	0.938
Cardiopulmonary ultrasound +NT-proBNP day2	0.487	0.939	0.889	0.828	0.965
Cardiopulmonary ultrasound +NT-proBNP day3	0.745	0.939	0.889	0.828	0.961
Cardiopulmonary ultrasound + PaO₂/FiO₂ day1	0.764	0.848	0.944	0.793	0.919
Cardiopulmonary ultrasound + PaO₂/FiO₂ day2	0.496	0.939	0.889	0.828	0.962
Cardiopulmonary ultrasound + PaO₂/FiO₂ day3	0.442	0.970	0.833	0.803	0.958

ISSN: 1471-2466