Test | Max error | Study entry | 6 months | 12 months | 18 months | 24 months | 30 months | 36 months |
---|---|---|---|---|---|---|---|---|
ADAS-Cog Items | ||||||||
Word Recall | 10 | 6 (5, 7) | 6 (5, 7) | 6 (5, 7) | 7 (5, 8) | 6 (5, 8) | 7 (5, 8) | 7 (5, 8) |
Naming | 5 | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) |
Delayed Word Recalla | 10 | 9 (7, 10) | 9 (7, 10) | 9 (7, 10) | 10 (7, 10) | 9 (7, 10) | 10 (8, 10) | 10 (8, 10) |
Commands | 5 | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 1 (0, 1) | 1 (0, 2) | 1 (0, 2) | 1 (0, 2) |
Constructional Praxis | 5 | 1 (0, 1) | 1 (0, 1) | 1 (0, 1) | 1 (0, 1) | 1 (0, 2) | 1 (0, 2) | 1 (0, 3) |
Ideational Praxis | 5 | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 2) |
Orientation | 8 | 1 (0, 3) | 1 (0, 3) | 2 (1, 4) | 2 (0, 4) | 3 (1, 4) | 3 (1, 5) | 4 (1, 5) |
Word Recognition | 12 | 5 (3, 8) | 5 (3, 8) | 5 (3, 9) | 5 (3, 9) | 6 (3, 9) | 6 (3, 9) | 8 (5, 11) |
Remembering Test Instr. | 5 | 1 (0, 1) | 1 (0, 1) | 1 (0, 2) | 1 (0, 2) | 1 (0, 3) | 1 (0, 3) | 1 (0, 3) |
Spoken Language Ability | 5 | 0 (0, 1) | 0 (0,1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) |
Word-finding Difficulty | 5 | 1 (0, 1) | 1 (0, 1) | 0 (0, 1) | 1 (0, 1) | 1 (0, 1) | 1 (0, 1) | 1 (0, 2) |
Comprehension | 5 | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 2) | 0 (0, 1) | 1 (0, 2) | 1 (0, 2) |
Concentrationa | 5 | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 1) | 0 (0, 2) | 0 (0, 1) | 0 (0, 1) |
ADAS-Cog Sumscores | ||||||||
ADAS-Cog, men | 70 | 17.5 ± 10.0 | 16.6 ± 9.44 | 17.7 ± 11.6 | 19.3 ± 13.3 | 20.4 ± 14.3 | 21.5 ± 15.9 | 23.6 ± 18.0 |
ADAS-Cog, women | 70 | 18.7 ± 8.45 | 19.1 ± 8.99 | 20.4 ± 10.2 | 22.5 ± 11.6 | 23.7 ± 11.6 | 26.3 ± 14.1 | 29.5 ± 15.7 |
ADAS-Cog, total | 70 | 18.2 ± 9.03 | 18.2 ± 9.21 | 19.5 ± 10.7 | 21.4 ± 12.3 | 22.5 ± 12.7 | 24.6 ± 14.9 | 27.4 ± 16.8 |