Table 2

Mean scores (SD) for the cognitive tests in patients at 6 months after acute episode and in healthy control subjects
Cognitive task Controls Patients Confidence t* P value
(n= 45) (n= 45) interval
Memory and learning
Immediate Logical memory 10.50 (2.81) 8.05 (3.06) 0.622-0.896 3.635 0.001*
Learning Curve 11.39 (2.76) 10.66 (2.90) 0.772-1.072 1.134 0.260
Immediate Verbal Paired Associates 10.84 (3.80) 7.68 (3.22) 0.679-0.904 3.860 <0.001*
Delayed Logical memory 10.74 (3.45) 7.87 (3.48) 0.671-0.912 3.610 0.001*
Delayed Verbal Paired Associates 9.87 (2.04) 8.26 (2.43) 0.577-0.907 3.114 0.003*
Executive function/Working memory
Trail Making B 62.33 (23.36) 95.27 (42.87) 1.016-1.053 −4.525 <0.001*
WAIS-III Letter-Number Span 11.22 (3.42) 8.02 (2.99) 0.616-0.856 4.695 <0.001*
WAIS-III Digits 10.38 (3.06) 8.89 (2.60) 0.710-0.968 2.488 0.015
WCST Number of errors 102.93 (16.51) 86.20 (22.64) 0.936-0.982 3.975 <0.001*
WCST Perseverative errors 102.93 (16.51) 89.50 (27.82) 0.959-0.994 2.745 0.007
WCST% Conceptual level R 102.88 (15.73) 86.14 (22.64) 0.938-0.984 3.683 <0.001*
Number of words FAS 14.16 (3.51) 12.44 (4.62) 0.810-1.002 1.988 0.05
Category fluency (animals) 22.69 (5.83) 18.16 (5.69) 0.795-0.945 3.729 <0.001*
Stroop interference 54.80 (8.09) 50.36 (8.05) 0.875-0.987 2.596 0.011
Processing speed and attention
Trail Making A 35.00 (16.51) 47.29 (17.45) 1.016-1.079 −3.432 0.001*
WAIS-III Digit-Symbol Coding 10.24 (3.72) 7.52 (3.45) 0.698-0.932 3.282 0.002*
Stroop words 49.95 (7.59) 44.47 (9.49) 0.873-0.978 3.008 0.003*
Stroop colours 45.77 (6.67) 39.40 (8.62) 0.841-0.955 3.894 <0.001*
Intelligence
WAIS-III Vocabulary 10.95 (2.19) 9.15 (3.02) 0.633-0.920 3.134 0.002*
WAIS-III Similarities 10.76 (2.36) 8.55 (2.48) 0.547-0.850 3.978 <0.001*

* Student’s t-test statistic.

Standard ranges: memory and learning: low ≤ 7, normal = 8-12, high ≥ 13; WAIS-III: low ≤ 7, normal = 8-12, high ≥ 13; Stroop: low ≤ 39, normal = 40-60, high ≥ 61; WCST (Wisconsin Card Sorting Test): deterioration < 106; no deterioration > 107; Trail Making A: low ≤ 39; normal ≥ 40; Trail Making B: low ≤ 91; normal ≥ 92; FAS (Fluency Assessment Scale): low ≤ 9; normal ≥ 10.

de Azua et al.

de Azua et al. BMC Psychiatry 2013 13:27   doi:10.1186/1471-244X-13-27

Open Data