Table 2.

Factors affecting neuropsychological functions

	Age	Education	Period of LOC	Time after brain injury
WCST
% errors	0.32**	–0.27*	0.18	–0.13
% perseverative errors	0.26*	–0.19	0.08	–0.02
% conceptual level responses	–0.36***	0.28*	–0.19	0.10
No. of completed categories	–0.43***	0.27*	–0.16	0.06
CTT2	0.36***	–0.23	0.19	–0.11
COWAT	–0.21	0.29**	–0.14	0.19
EMQ	–0.03	–0.14	0.41***	0.09
GDS	0.24*	–0.26*	0.14	0.03
STAI	0.17	–0.10	0.11	0.05
ABS	0.09	–0.34**	0.32**	0.04

*p < 0.05, **p < 0.01, ***p < 0.001. WCST, Wisconsin Card Sorting Test; CTT2, Color Trail Test 2; COWAT, Controlled Oral Word Association Test; EMQ, Everyday Memory Questionnaire; GDS, Geriatric Depression Scale; STAI, State-Trait Anxiety Inventory; ABS, Agitated Behavior Scale.