Table 2.

CT enhancement findings of bladder cancer.

		Mean difference of density (HU)	95% confidence interval for difference of density (HU)		p-value*
60 seconds	Pre-contrast	37.45	29.19	45.72	<0.001
	80	1.44	−1.93	4.81	1.000
	180	4.60	−1.08	10.28	0.173
80 seconds	Pre-contrast	36.01	28.83	43.196	<0.001
	180	3.16	−0.83	7.15	0.193
180 seconds	Pre-contrast	32.86	26.43	39.21	<0.001

^*Bonferroni test was used for multiple comparisons.