Table 4. Area under the receiver operating characteristics curve (AUC), 95% confidence interval for AUC and p-value for different threshold criteria using the lung area estimation method (LAEM) and the global inhomogeneity index (GI).

Comparison between patients suffering from acute respiratory distress syndrome (ARDS) and control patients without pulmonary pathologies.

LAEM Threshold GI	AUC	95% CI	p (ARDS vs Control)
5%	0.79	0.62–0,95	0.006
10%	0.79	0.62–0.95	0.005
15%	0.77	0.61–0.93	0.009
20%	0.78	0.63–0.93	0.007
25%	0.75	0.59–0.91	0.017
30%	0.77	0.62–0.92	0.009
35%	0.79	0.64–0.94	0.005
40%	0.84	0.72–0.97	< 0.001
45%	0.86	0.74–0.98	< 0.001
50%	0.89	0.78–1.0	< 0.001
55%	0.89	0.78–1.0	< 0.001
60%	0.84	0.70–0.97	0.001
65%	0.81	0.67–0.95	0.003
70%	0.78	0.62–0.94	0.007
75%	0.74	0.57–0.90	0.021
80%	0.66	0.48–0.84	0.115
85%	0.62	0.44–0.80	0.240
90%	0.59	0.41–0,78	0.365
95%	0.61	0.42–0.80	0.283