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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