Table S9. Interobserver agreement of texture parameters of esophageal squamous carcinomas based on unenhanced and contrast enhanced CT images.

Parameters	Unenhanced CT			Contrast enhanced CT
	ICC	95% CI		ICC	95% CI
Mean	0.876*	0.766–0.934		0.726	0.483–0.855
10th percentile	0.921*	0.851–0.958		0.763	0.553–0.875
90th percentile	0.772	0.569–0.880		0.743	0.514–0.864
Skew	0.336	0.255–0.649		0.469	0.004–0.719
Kurtosis	0.509	0.072–0.740		0.708	0.448–0.846
Entropy	0.699	0.431–0.841		0.882*	0.776–0.937

*, ICC >0.800, indicating an excellent interobserver agreement. ICC, intraclass correlation coefficient.