Assessing Cognitive Ability and Simulator-Based Driving Performance in Poststroke Adults

Table 3

The between-group analysis of D-KEFS TMT variables.

Variables	Poststroke driver			Controls			t value	df	value
	n	Mean	SD	n	Mean	SD
Visual scanning (D-KEFS TMT 1)	37	7.38	3.62	43	10.90	2.17	−5.19	57.06	0.001
Numerical sequencing and visual attention (D-KEFS TMT 2)	37	9.08	3.75	43	11.47	3.01	−3.16	78	0.003
Letter sequencing, visual attention, and visuomotor; abilities (D-KEFS TMT 3)	37	8.51	4.07	43	11.72	2.57	−4.14	58.97	0.001
Cognitive flexibility and executive function (D-KEFS TMT 4)	37	8.27	4.43	43	11.65	2.35	−4.16	52.86	0.001
Motor and processing speed (D-KEFS TMT 5)	37	9.68	2.92	43	12.02	1.71	−4.30	56.26	0.001
Combined number sequencing and letter; sequencing (D-KEFS TMT 2 + TMT 3)	37	9.12	4.02	43	12.35	2.89	−4.04	64.29	0.001
	n	Median	Mean	IQR	n	Median	Mean	IQR	value
D-KEFS cognitive flexibility and executive function; contrast score (D-KEFS TMT 4–2 & 3)	37	1.00	2.92	4.50	43	1.00	1.67	0.00	0.02

value < 0.05. value < 0.001.