Table 2. Predictive factors for thymoma by multivariable logistic regression analysis.

Characteristics	Adjusted ORa	95% CI	P
Size on CT scan	0.989	0.903–1.085	0.822
Contour
Conformal to adjacent mediastinum	1 (reference)
Smooth	1.690	0.183–15.603	0.644
Lobulated	10.938	1.154–103.634	0.037
Enhancement
No	1 (reference)
Yes	52.923	11.800–237.357	0.001

^a, OR is adjusted by size, shape and enhancement.