Table 3

Summary of the patients’ raw scores and completion times on the neurocognitive tests

Preoperative measurement


Mean (SD)


Median
Postoperative measurement


Mean (SD)


Median
P value*
VVLT total word count22.3 (5.0)
Med: 22.0
25.3 (5.9)
Med: 25.5
<0.05
VVLT delayed recall, total word count8.1 (2.6)
Med: 8.0
9.1 (3.2)
Med: 9.5
<0.05
CST, time (s), part C38.8 (14.8)
Med: 33.1
36.9 (13.5)
Med: 35.4
0.49
CST, number of errors, part C1.4 (2.7)
Med: 0
1.1 (2.2)
Med: 0
0.42
Letter-Digit Coding Test, score27.4 (5.9)
Med: 28
27.9 (7)
Med: 30
0.39
SCW, time (s), part 351.4 (19.2)
Med: 47.5
50.3 (22.1)
Med: 43,8
0.15
SCW, number of errors0.6 (1)
Med: 0
0.9 (1,9)
Med: 0
0.22
  • *Wilcoxon signed-rank test.

  • CST, Concept Shifting Task; SCW, Stroop Colour-Word Test; VVLT, Visual Verbal Learning Test.