Table 3 Correlation coefficient between cognitive performance and gait speed

Age (years)

-0.219

0.056

Educational level (years)

0.171

0.138

Executive function

 TMT-A (s)

-0.376

0.001*

 TMT-B (s)

-0.324

0.005

 Category fluency test

0.449

< 0.001*

Attention and working memory

 Digit recall forwards

0.172

0.135

 Digit recall backwards

0.370

0.001*

Episode memory

 California Verbal Learning Test-short form

0.391

< 0.001*

Visuospatial performance

 Judgment of Line Orientation

0.085

0.467

Language

 Boston Naming Test

0.305

0.007

Depression

 GDS-15

-0.292

0.010