Table 3.

Raw scores on cognitive function tests versus published norms

Test	CKD			HD
	raw	PN	P	raw	PN	P
MMSE	28.9 ± 1.2			28.1 ± 1.8
Attention and processing speed
Trails A	59.5 ± 24.2	47.2 ± 11.6	0.03	64.7 ± 24.8	39.5 ± 8.8	<0.001
Digit Span	12.9 ± 2.4	15.2 ± 0.8	<0.001	12.4 ± 3.3	15.9 ± 0.8	<0.001
SDMT	29.8 ± 8.7	32.5 ± 9.5	0.3	29.1 ± 7.6	41.1 ± 10.1	<0.001
Stroop Word	78.1 ± 13.5	97.6 ± 8.6	<0.001	68.4 ± 11.7	99.1 ± 2.7	<0.001
Stroop Color	45.8 ± 8.1	71.5 ± 4.8	<0.001	49.9 ± 11.6	73.1 ± 2.2	<0.001
Executive function
Short Category Test	43.4 ± 8.3	31.4 ± 2.9	<0.001	38.3 ± 13.8	31.5 ± 2.7	0.02
Trails B	157.5 ± 56.8	115.6 ± 33.0	0.005	169.6 ± 93.6	92.8 ± 26.8	<0.001
Stroop Color-Word	20.6 ± 4.4	32.9 ± 6.5	<0.001	21.4 ± 7.7	35.1 ± 3.2	<0.001
Language
FAS	30.3 ± 12.1	35.9 ± 6.1	0.05	25.4 ± 9.9	39.6 ± 4.2	<0.001
Animal naming	15.6 ± 4.0	16.8 ± 2.2	0.2	13.2 ± 4.2	18.3 ± 2.2	<0.001
Memory
CVLT total recall	34.5 ± 8.5	36.4 ± 6.0	0.4	33.7 ± 7.4	40.5 ± 5.8	<0.001
CVLT short delay recall	6.1 ± 3.2	7.4 ± 1.4	0.08	5.9 ± 3.7	8.1 ± 1.1	0.006
CVLT long delay recall	6.7 ± 2.8	7.8 ± 1.3	0.09	6.6 ± 3.3	8.5 ± 1.0	0.008
CVLT long delay recognition	12.5 ± 2.5	14.0 ± 0.2	0.007	12.3 ± 2.3	14.0 ± 0.0	<0.001

HD = Hemodialysis; CKD = chronic kidney disease; PN = published normative value.

Scores are reported as mean ± SD.

Trails A, SDMT, Digit Span, STROOP Word n = 23 CKD, n = 27 HD; SCT n = 18 CKD, n = 27 HD.

STROOP Color, STROOP Color-Word n = 22 CKD, n = 26 HD; Trails B n = 22 CKD, n = 27 HD.