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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”.