Table 2 Correlation between erectile function and objective measurements.

From: The flow index provides a comprehensive assessment of erectile dysfunction by combining blood flow velocity and vascular diameter

Parameters

EHS

IIEF-5

PSV

PLA stenosis

FI

EHS

rs

1.000

    

P value

    

IIEF-5

rs

0.546*

1.000

   

P value

 < 0.001

   

PSV

rs

0.294*

0.206

1.000

  

P value

0.007

0.062

  

PLA stenosis

rs

− 0.355*

− 0.253*

− 0.248*

1.000

 

P value

 < 0.001

0.021

0.024

 

FI

rs

0.405*

0.323*

0.513*

− 0.919*

1.000

P value

 < 0.001

0.003

 < 0.001

 < 0.001

  1. The FI had better correlations with erectile function than PSV.
  2. EHS erection hardness score, FI flow index, IIEF-5 the simplified International Index of Erectile Function, PLA pelvic artery, PSV peak systolic velocity.
  3. Spearman's rank correlation coefficient, *P < 0.05.
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