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Table 6 Test results from healthy elderly and INPH patients a

From: A computerized neuropsychological test battery designed for idiopathic normal pressure hydrocephalus

Computer test

First test healthy elderly N = 44 median (IQR)

INPH N = 26 median (IQR)

p b

Two choice reaction [ms]

737 (660 - 822)

1130 (933 - 1534)

<0.001

Stroop congruent [ms]

846 (790 - 924)

1314 (1130 - 1857)

<0.001

Stroop incongruent [ms]

1073 (952 - 1371)

2764 (1494 - 3818)

<0.001

Ten word list c #

20 (17 - 22)

9.5 (6 - 13)

<0.001

Delayed recall c #

6 (5 - 8)

2 (0.75 - 3)

<0.001

Delayed recognition c #

9 (9 - 10)

6 (5 - 7.25)

<0.001

Trail making test A [s]

39.9 (36.0 - 48.8)

66 (57 - 85)

<0.001

Trail making test B [s]

78.2 (63.6 - 99.2)

135 (97 - 172)

<0.001

Figure copy task [%]

90.9d

38.5d

<0.001

Four-finger tapping c #

108 (97 -149)

67 (53 - 95)

<0.001

  1. aIQR = Interquartile range; p = significance in score difference.
  2. bChi-square test for the figure copy task and Mann-Whitney U for all other tests.
  3. cTests redesigned during the study and only 26 of the 44 participants in the healthy elderly group took the slightly modified test.
  4. dPercent who scored “correct”.
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Fluids and Barriers of the CNS

ISSN: 2045-8118