Table 4.

The correlation coefficient (r) and P value for small intestine.

Relevant factors r, P	VBladder	Vsub-small intestine 1	Vsub-small intestine 2	Vsub-small intestine 3	Vsub-small intestine 4	Vsub-small intestine 5
$\text{r}({\text{D}}_{2\text{c}{\text{m}}^3}/{\text{D}}_{\text{prescription}})$	0.75**	0.89**	0.89**	0.87**	0.84**	0.83**
$P({\text{D}}_{2\text{c}{\text{m}}^3}/{\text{D}}_{\text{prescription}})$	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001

**When the confidence (double test) is less than 0.01, the correlation is significant.

Vsub-small intestine, the volume of the sub-small intestine.