A novel radiomics based on multi-parametric magnetic resonance imaging for predicting Ki-67 expression in rectal cancer: a multicenter study

Table 7 Delong test for different models in three groups

Model	Training	In-valid	Ex-valid
Radscore vs. Clinical	0.261	0.616	0.505
Radscore vs. Combined	0.163	0.076	0.228
Combined vs. Clinical	0.015	0.047	0.045

ISSN: 1471-2342