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Table 2: Differences in each neuropsychological test score between the 2 tests (the second test score–the first test score) in controls and patients^{^a}
Test Controls⁹ (n = 40) All Patients (n = 100) Subgroup P Value
A) Improved Cognition (n = 10) B) Unchanged Cognition (n = 80) C) Impaired Cognition (n = 10) Controls vs All Patients Controls vs A Controls vs B Controls vs C
WAIS-R verbal IQ 3.4 ± 4.5 4.0 ± 6.2 11.4 ± 4.6 4.3 ± 5.1 −5.1 ± 4.0 .2377 <.0001 0.1117 <.0001
WAIS-R performance IQ 4.9 ± 5.0 4.7 ± 7.0 11.9 ± 4.3 5.2 ± 5.7 −6.7 ± 5.1 .5791 .0001 0.3582 <.0001
WMS 4.7 ± 6.1 3.7 ± 7.2 11.9 ± 4.8 4.3 ± 5.1 −9.4 ± 7.7 .4560 .0002 0.2678 <.0001
Rey copy 0.4 ± 1.1 0.8 ± 1.8 4.1 ± 1.4 0.7 ± 1.2 −1.9 ± 1.7 .0599 <.0001 0.0845 <.0001
Rey recall 2.9 ± 3.5 2.6 ± 4.3 7.5 ± 3.3 2.7 ± 3.6 −3.6 ± 2.8 .9796 .0007 0.7578 <.0001
Note:—WMS indicates Wechsler Memory Scale.
↵a Values are expressed as means.