Skip to main content
. 2013 Nov 6;13:123. doi: 10.1186/1472-6947-13-123

Table 4.

AUC values of nine methods on testing data

Model Sensitivity Specificity AUC 1 P value
(AUC compared with Radiologist)
ER based model
0.8951
0.8
0.829 ± 0.037
P < 0.001
ANN
0.8453
0.6429
0.791 ± 0.041
P < 0.001
SVM Linear
0.8723
0.6765
0.78 ± 0.046
P < 0.001
SVM Gaussion
0.7657
0.6036
0.688 ± 0.059
P < 0.001
SVM Ploynomial2
0.8611
0.6774
0.781 ± 0.048
P < 0.001
SVM Ploynomial3
0.8662
0.6667
0.782 ± 0.048
P < 0.001
SVM Ploynomial4
0.8633
0.6111
0.769 ± 0.049
P < 0.001
Logistic Regression
0.8552
0.6667
0.793 ± 0.039
P < 0.001
Radiologist2 0.634 0.765 0.757 ± 0.042  

1The value of data was AUC + standard deviation.

2Taking 7.7 mm as the best cut-off point of maximum lymph node size, and if lymph node size larger than 7.7 mm, it is considered that LNM occurs; otherwise, it does not occur.