Table 2. Area under the receiver operating characteristics curve (AUC), 95% confidence interval for AUC and p-value for different threshold criteria using functional region of interest (fROI) and the global inhomogeneity (GI) index.

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

fROI Threshold GI	AUC	95% CI	p (ARDS vs Control)
5%	0.74	0.56–0.92	0.02
10%	0.74	0.57–0.92	0.02
15%	0.73	0.56–0.90	0.03
20%	0.68	0.50–0.85	0.09
25%	0.67	0.49–0.85	0.10
30%	0.66	0.48–0.84	0.12
35%	0.65	0.47–0.84	0.14
40%	0.66	0.48–0.85	0.11
45%	0.68	0.50–0.86	0.08
50%	0.68	0.51–0.86	0.08
55%	0.67	0.50–0.85	0.09
60%	0.68	0.50–0.85	0.09
65%	0.70	0.53–0.87	0.06
70%	0.64	0.46–0.82	0.17
75%	0.55	0.36–0.74	0.61
80%	0.62	0.44–0.80	0.25
85%	0.60	0.42–0.79	0.31
90%	0.55	0.37–0.74	0.61
95%	0.71	0.54–0.89	0.04