Research Article
The Tree-Drawing Test (Koch’s Baum Test): A Useful Aid to Diagnose Cognitive Impairment
Table 2
Qualitative characteristics of trees.
| | AD | FTD | VD | MCI | Controls | | (%) | (%) | (%) | (%) | (%) |
| Trunk shape (s: single line, d: double line) | s: 23 (19%) d: 95 (81%) | s: 2 (11%) d: 17 (89%) | s: 8 (17%) d: 38 (83%) | s: 11 (9%) d: 121 (91%) | s: 5 (6%) d: 85 (94%) |
| Trunk end opening (0: top of the trunk closed, 1: top of the trunk opened, 2: top of the trunk wider than trunk) | 0: 102 (86%) 1: 12 (10%) 2: 4 (4%) | 0: 19 (100%) 1: 0 (0%) 2: 0 (0%) | 0: 43 (93%) 1: 2 (4%) 2: 1 (3%) | 0: 124 (94%) 1: 8 (6%) 2: 0 (0%) | 0: 82 (91%) 1: 7 (8%) 2: 1 (1%) |
| Crown shape (o: open, c: closed, n: not done) | o: 86 (73%) c: 29 (25%) n: 3 (2%) | o: 12 (63%) c: 7 (37%) | o: 33 (72%) c: 13 (28%) | o: 106 (80%) c: 26 (20%) | o: 53 (59%) c: 37 (41%) |
| Branches shape (s: single line, d: double line, n: not done) | s: 84 (71%) d: 3 (3%) n: 31 (26%) | s: 11 (58%) d: 1 (5%) n: 5 (37%) | s: 30 (65%) d: 5 (11%) n: 11 (24%) | s: 101 (77%) d: 5 (4%) n: 26 (19%) | s: 53 (59%) d: 13 (14%) n: 24 (27%) |
| Leaves | 24 (20%) | 5 (26%) | 9 (20%) | 41 (31%) | 28 (31%) |
| Flowers | 0 | 0 | 2 (4%) | 6 (5%) | 4 (4%) |
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