Table 4.

Areas under ROC curves for prognostic markers

Factor	AUC (95% CI)	P‐value
CD66b	0.647 (0.572‐0.722)	<.001
α‐SMA	0.657 (0.583‐0.731)	<.001
α‐SMA & CD66b	0.703 (0.633‐0.774)	<.001
pTNM stage	0.757 (0.688‐0.827)	<.001
pTNM stage + α‐SMA & CD66b	0.839 (0.784‐0.894)	<.001

Abbreviations: α‐SMA, α‐smooth muscle actin; AUC, area under the curve; CI, confidence interval; ROC, receiver operating characteristic.

P < .05 is considered statistically significant (bold).