Table 1.

Neuropsychological measures from tests on transplant patients and patients with Crohn’s disease

Capacity/measure	Transplant patients		Crohn’s disease		Normal value
Capacity/measure	X̄	SD	X̄	SD	≥
Verbal intelligence (IQ)
Peabody Picture Vocabulary test	96.00	15.91	99.00	15.81	100
Nonverbal intelligence (IQ)
Raven’s Progressive Matrices	113.38	9.78	113.50	13.21	100
Attention and concentration
Digit span forward	6.90	1.29	7.22	0.97	7
Digit span backward	4.80	1.03	4.78	1.30	5
Mental control	7.90	1.10	7.90	0.99	8
Learning and memory
Logical memory (immediate)	17.11	8.22	19.40	6.65	18
Logical memory (delayed)	13.44	6.73	13.10	6.40	13
Figural memory (immediate)	11.20	2.97	10.40	2.76	11
Figural memory (delayed)	12.30	2.16	10.40	3.89	10
Paired associates (immediate)	25.90	3.51	17.75	2.06	18
Paired associates (delayed)	9.50	0.71	9.20	1.14	9
Supraspan (digit span + 1)^*	2.60	1.35	2.22	1.72	2
Perceptual-motor
Finger tapping	97.30	14.03	81.80	12.71	95
Purdue pegboard	38.20	5.86	29.22	2.95	38
Star tracing—time	36.20	9.59	43.90	25.02	36
—errors^*	4.30	4.86	1.30	1.49	2
Symbol Digit Modalities	46.60	10.93	53.50	6.45	53
Spatial
Block design	20.20	3.97	21.30	5.87	21
Tactual performance—seconds	838.22	296.65	835.40	297.01	900
—memory	7.78	1.09	7.70	1.49	7
—location	4.11	2.89	4.90	2.28	4
Trailmaking test^*	113.38	47.98	88.67	46.79	130
Language
Boston Diagnostic Aphasia examination
Fluency	22.40	5.25	23.80	5.98	20
Confrontation naming	104.70	0.95	103.70	1.70	105
Responsive naming	30.00	0.00	29.90	0.32	30
Token test	11.90	1.85	12.30	0.82	10

Higher score indicates poorer performance.