Preoperative contrast-enhanced CT imaging and clinicopathological characteristics analysis of mismatch repair-deficient colorectal cancer

Table 4 Pre- and Post-operative model internal validation results

	Leave-one-out cross-validation	Five-fold cross-validation		Bootstrapping
	C-statistic	Mean C-statistic	95% CI	Mean C-statistic	95% CI
Preoperative model	0.79	0.83	0.81,0.84	0.85	0.84,0.85
Postoperative model	0.88	0.88	0.87,0.89	0.90	0.89,0.90

ISSN: 1470-7330