All the subjects

(n = 50)

Fourth decade

(n = 23)

Fifth decade

(n = 14)

Sixth decade

(n = 13)

Person correlation coefficient (R)

−0.243

−0.038

−0.269

−0.444

Regression coefficient (B)

−0.043

−0.027

−0.123

−0.298

p value

0.089

0.863

0.352

0.128