Table 3.

Correlation coefficient between cognitive performance and gait speed

	Gait speed, r	P value
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

Abbreviations: TMT Trail Making Test, GDS Geriatric Depression Scale. *p < 0.005