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Table 1 Comparison of cognitive functions before and after liver transplantation among recipients

From: Cognitive impairment in recipients of liver transplantation and relation to hepatic encephalopathy

  Before Total McNemar test
No Yes p value Sig.
Trail making B
 After
  No 17 (56.67%) 2 (6.67%) 19 (63.33%) 1 NS
  Yes 2 (6.67%) 9 (30%) 11 (36.67%)
 Total 19 (63.33%) 11 (36.67%) 30 (100%)
Trail Making A
 After
  No 16 (53.33%) 7 (23.33%) 23 (76.67%) 0.02 S
  Yes 0 (0%) 7 (23.33%) 7 (23.33%)
 Total 16 (53.33%) 14 (46.67%) 30 (100%)
Information/orientation test of WMS
 After
  No 26 (86.67%) 4 (13.33%) 30 (100%) 0.13 NS
 Total 26 (86.67%) 4 (13.33%) 30 (100%)
Verbal association test part 1 of WMS
 After
  No 5 (16.67%) 7 (23.33%) 12 (40%) 0.55 NS
  Yes 4 (13.33%) 14 (46.67%) 18 (60%)
 Total 9 (30%) 21 (70%) 30 (100%)
Verbal association test part 2 of WMS
 After
  No 20 (66.67%) 5 (16.67%) 25 (83.33%) 0.06 NS
  Yes 0 (0%) 5 (16.67%) 5 (16.67%)
 Total 20 (66.67%) 10 (33.33%) 30 (100%)
Digit span forward test of WMS
 After
  No 19 (63.33%) 8 (26.67%) 27 (90%) 0.01 S
  Yes 0 (0%) 3 (10%) 3 (10%)
 Total 19 (63.33%) 11 (36.67%) 30 (100%)
Digit span backward test of WMS
 After
  No 7 (23.33%) 9 (30%) 16 (53.33%) 0.02 S
  Yes 1 (3.33%) 13 (43.33%) 14 (46.67%)
 Total 8 (26.67%) 22 (73.33%) 30 (100%)
Benton visual retention test correct score difference
 After
  No 13 (43.33%) 11 (36.67%) 24 (80%) 0.01 S
  Yes 1 (3.33%) 5 (16.67%) 6 (20%)
 Total 14 (46.67%) 16 (53.33%) 30 (100%)
Benton visual retention test error score difference
 After
  No 5 (16.67%) 7 (23.33%) 12 (40%) 0.18 NS
  Yes 2 (6.67%) 16 (53.33%) 18 (60%)
 Total 7 (23.33%) 23 (76.67%) 30 (100%)