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Table 3 Mean z scores and number of patients performing in the impaired range for each test

From: Predictors of preoperative cognitive dysfunction in adults with Moyamoya disease: a preliminary research

Tests

Mean z scores

No. of patients /impairment

Mild

Severe

Overall

no. of patients

   

92

 IQ

−0.973

16

15

31 (33.69%)

 PM

−1.35

13

21

34 (36.96%)

 IM

−0.659

7

9

16 (17.39%)

 VD

−0.244

1

0

1 (1.09%)

 VF

−1.149

12

18

30 (32.61%)

 AT

−1.484

12

21

33 (35.86%)

 RM

−0.81

3

15

18 (19.56%)

  1. IQ Intelligence Quotient, PM Prospective Memory, IM Immediate Memory, VD Visual Breadth, VF Verbal Fluency, AT Attention, RM Retrospective Memory