Behavioural Neurology / 2015 / Article / Tab 3

Research Article

The Tree-Drawing Test (Koch’s Baum Test): A Useful Aid to Diagnose Cognitive Impairment

Table 3

Quantitative analysis of trees and significant differences between groups.

ADFTDVDMCIControlsControls versus AD versus FTD versusVD versus
Mean ± SDMean ± SDMean ± SDMean ± SDMean ± SD ADFTDVDMCIFTDVDMCI VDMCIMCI

MMSEc17.61 ± 3.8918.68 ± 6.4219.52 ± 3.2826.09 ± 1.7728.04 ± 1.42****************n.s.******* n.s. ********
Trunk-to-crown ratio12.62 ± 7.5912.75 ± 4.9112.29 ± 6.1211.04 ± 5.378.35 ± 3.72********* ***n.s.n.s.n.s.n.s.n.s.n.s.
Crown ratio1.51 ± 0.611.63 ± 0.571.68 ± 0.731.53 ± 0.451.45 ± 0.48n.s.n.s.* n.s.n.s.n.s.n.s.n.s.n.s.n.s.
Tree size-relative-to-page space0.03 ± 0.030.13 ± 0.110.1 ± 0.680.08 ± 0.060.23 ± 0.19****************************n.s.*****
Tree height52.09 ± 24.04109.89 ± 38.9891.41 ± 28.3580.77 ± 28.87132.61 ± 57.81*********************************
Tree width35.86 ± 21.1470 ± 39.0865.43 ± 26.8656.67 ± 25.696.57 ± 41.67****************************n.s.**
Trunk height26.64 ± 15.3456.74 ± 22.8345.87 ± 21.1138.11 ± 17.7152.73 ± 23.74****n.s.n.s.**********************
Trunk width8.13 ± 7.2513.58 ± 10.3211.02 ± 7.999.85 ± 6.8413.23 ± 7.78****n.s.n.s. *****n.s.n.s.n.s.n.s.
Trunk’s tilt89.39 ± 8.7986.89 ± 4.6588.09 ± 5.6489.59 ± 6.1490.7 ± 4.21n.s.n.s.n.s. n.s.n.s.n.s.n.s.n.s.n.s.n.s.
Crown height23.86 ± 13.1147.47 ± 21.1241.04 ± 15.6738.34 ± 16.4772.46 ± 39.22****************************n.s.*n.s.
Crown width34.71 ± 21.8675.11 ± 39.5364.8 ± 26.5856.48 ± 25.5495.91 ± 41.22**************************n.s.**n.s.
Root height1.59 ± 4.635.68 ± 8.74.5 ± 8.454.31 ± 7.837.42 ± 13.34****n.s.* *****n.s.n.s.n.s.
Root width3.53 ± 12.1315.84 ± 23.139.41 ± 16.489.33 ± 16.8918.44 ± 32.19****n.s.********n.s.**n.s.n.s.n.s.

< 0.000; < 0.001; < 0.01; < 0.05; n.s.: not significative.

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