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Table 2 Memory Impairment Screen (MIS) scores by visit

From: Practice effects in a longitudinal, multi-center Alzheimer’s disease prevention clinical trial

All participants with alternating versions (n = 1,803)

 

Baseline MIS

FU 1 MIS

FU 2 MIS

FU 3 MIS

MIS score, mean (SD)

7.34 (0.74)

7.47 (0.68)

7.48 (0.70)

7.54 (0.69)

MIS score, n (%)

    

≤ 5

45 (2.5%)

24 (1.3%)

30 (1.7%)

33 (1.8%)

6

151 (8.4%)

123 (6.8%)

128 (7.1%)

103 (5.7%)

7

759 (42.1%)

632 (35.1%)

596 (33.1%)

527 (29.2%)

8

848 (47.0%)

1,024 (56.8%)

1,049 (58.2%)

1,140 (63.2%)

Total

1,803 (100%)

1,803 (100%)

1,803 (100%)

1,803 (100%)

Participants age 75 years or more at baseline with alternating versions (n = 218)

 

Baseline MIS

FU 1 MIS

FU 2 MIS

FU 3 MIS

MIS score, mean (SD)

7.30 (0.81)

7.41 (0.71)

7.33 (0.76)

7.32 (0.82)

MIS score, n (%)

    

≤ 5

8 (3.7%)

2 (0.9%)

5 (2.3%)

10 (4.6%)

6

24 (11.0%)

22 (10.1%)

23 (10.6%)

19 (8.7%)

7

80 (36.7%)

79 (36.2%)

84 (38.5%)

80 (36.7%)

8

106 (48.6%)

115 (52.8%)

106 (48.6%)

109 (50.0%)

Total

218 (100%)

218 (100%)

218 (100%)

218 (100%)

  1. FU, follow-up visit.