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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Alzheimers Dement. 2020 Nov 20;17(3):500–514. doi: 10.1002/alz.12209

Table 2. Behavioural, cognitive and neuropsychological estimates in presymptomatic carriers and non-carriers.

Gene Status Group Statistical tests*
NC PSC X2 P-value
Behavioural
              Cambridge Behavioural Inventory–Revised (/180) 3.5(5.4) 4.7(10) 0.03 0.864
Cognitive
              Mini-Mental State Examination 29.3(1.1) 29.2(1.3) <0.01 0.963
Neuropsychological
              Logical Memory–Immediate Recall 15.2(5.6) 15.7(5.6) 0.47 0.495
              Logical Memory–Delayed Recall 14.1(4.7) 14(5) 0.97 0.356
              Digit Span-Forwards 6.4(1.2) 6.3(1.3) 0.52 0.470
              Digit Span -Backwards 4.9(1.2) 4.8(1.2) 1.62 0.203
              Digit Symbol Task 32(14.1) 35(14) 0.35 0.556
              Trail Making Test Part A 28.9(17.2) 28.9(11.5) 0.97 0.325
              Trail Making Test Part B 72.5(43.7) 72.3(45.5) 0.02 0.895
              Verbal Fluency-Letter 42(12.2) 40.7(15.1) 0.95 0.330
              Verbal Fluency-Animal 23.3(6) 23.7(5.8) 0.58 0.445
              Boston Naming Test 28.1(2.1) 27.6(2.7) 0.58 0.446
              Block Design 41.8(16.1) 42.5(17.1) 0.17 0.683
*

Statistical test to indicate whether scores vary between NC and PSC groups