Predictors

Mean

SD

β

Regression analysis

Collinearity

SE

t

Sig

Tol

VIF

PSA

3.46

0.355

−0.119

0.068

−2.297

0.022

0.998

1.002

HC

3.47

0.463

−0.127

0.053

−2.420

0.016

0.976

1.025

PP

3.38

0.407

0.181

0.061

3.418

0.001

0.947

1.055

KOV

3.46

0.457

0.248

0.055

4.631

0.000

0.928

1.077