Spearman’s rank correlation coefficient (ρ)

p

Intravesical pressure at maximum flow rate

−0.0231

0.9148

Maximum flow rate

−0.9133

<0.0001

Average flow rate

−0.8631

<0.0001

Voided volume

−0.7017

0.0001

Post-void residual volume

0.535

0.0071

Voiding time

0.1374

0.522