Table 4. Interobserver variability of shape features of thymomas.

Variables	ICC†	95% CI††	P-value
Log_Volume	0.994	0.983–0.998	<0.001
Surface area (cm2)	0.984	0.955–0.994	<0.001
Sphericity	0.936	0.816–0.978	<0.001
Discrete compactness	0.969	0.911–0.989	<0.001
Roundness	0.992	0.978–0.997	<0.001

Note—ICCs of less than 0.40 signifies poor agreement; 0.41–0.60, moderate agreement; 0.61–0.80, good agreement; and 0.81 or greater, excellent agreement.

^†ICC = intraclass correlation coefficients.

^††CI = confidence interval