Research Article

Abnormal Functional Connectivity of Ventral Anterior Insula in Asthmatic Patients with Depression

Table 3

ROC analyses for separating different groups.

Brain regionsAUC value95% CISensitivitySpecificityCut-off point

FC between the left vAI and the following brain regions
Left cerebellum posterior lobe
DA-NDA0.1940.0010.058–0.3310.0560.333−0.0095a
DA-HCs0.7000.0100.588–0.8120.9440.583−0.1290
NDA-HCs0.820<0.0010.720–0.9200.9170.683−0.0808
Left middle temporal gyrus
DA-NDA0.7590.0040.606–0.9120.7780.7080.0932
DA-HCs0.831<0.0010.709–0.9520.7780.8330.0941
NDA-HCs0.5990.1570.465–0.7330.4580.7670.0632
Bilateral anterior cingulate cortex
DA-NDA0.6230.1780.450–0.7960.8330.4580.1389
DA-HCs0.828<0.0010.721–0.9350.8330.7830.1450
NDA-HCs0.7090.0030.586–0.8330.5420.8000.1554
Right parietal lobe
DA-NDA0.2570.0080.102–0.4120.2780.292−0.1453
DA-HCs0.129<0.0010.024–0.2330.2220.083−0.1336
NDA-HCs0.3010.0050.173–0.4290.5000.150−0.1057
Left parietal lobe
DA-NDA0.2940.0240.134–0.4540.4440.167−0.2058
DA-HCs0.159<0.0010.057–0.2620.3330.117−0.1446
NDA-HCs0.3140.0080.189–0.4380.5420.117−0.1489

FC between right vAI and following brain regions
Left putamen
DA-NDA0.3360.0710.170–0.5020.1110.5420.3462
DA-HCs0.6440.0660.510–0.7770.7780.5500.2277
NDA-HCs0.760<0.0010.651–0.8680.6670.8000.3013
Right caudate
DA-NDA0.3060.0330.141–0.4700.3890.2500.2506
DA-HCs0.5990.2040.459–0.7390.8330.3670.1431
NDA-HCs0.778<0.0010.677–0.8800.8750.6170.2381

Note: aThis cut-off point resulted in a sensitivity of 5.6% and a specificity of 33.3% while DA patients separating from NDA patients. The means of other cut-off points were similar. ROC: receiver operating characteristic; AUC: area under the curve; CI: confidence interval; DA: depressed asthma; NDA: nondepressed asthma; HCs: healthy controls.