Convolutional neural network applied to preoperative venous-phase CT images predicts risk category in patients with gastric gastrointestinal stromal tumors

Table 4 The obuchowski index results of the three models

Cohort	Model 1	Model 2	Obuchowski index of Model 1	Obuchowski index of Model 2	P-value
Training cohort	CNN_layer3	CNN_layer9	0.8846467	0.9004745	0.001187
	CNN_layer3	CNN_layer15	0.8846467	0.9008081	0.006965
	CNN_layer9	CNN_layer15	0.9004745	0.9008081	0.878231
Validation cohort	CNN_layer3	CNN_layer9	0.8709226	0.8747248	0.644065
	CNN_layer3	CNN_layer15	0.8709226	0.8725235	0.861342
	CNN_layer9	CNN_layer15	0.8747248	0.8725235	0.583739

ISSN: 1471-2407