Analysis of Center of Pressure Signals by Using Decision Tree and Empirical Mode Decomposition to Predict Falls among Older Adults

Table 3

Group statistics for C4 feature parameters between fall and nonfall groups. Data is represented as mean (standard derivation).

Features name	Fall	Nonfall	value	<0.05; <0.01; <0.001
x.1.4	0.45 (1.12)	0.47 (0.11)	0.0011
x.2.4	0.24 (0.06)	0.25 (0.06)	0.00061
x.3.4	0.10 (0.03)	0.11 (0.03)	5.9E-0.5
x.4.4	0.05 (0.01)	0.05 (0.01)	0.00014
x.5.4	0.02 (0.007)	0.02 (0.007)	0.00824
y.0.4	0.08 (0.03)	0.08 (0.03)	0.015
y.2.4	0.23 (0.07)	0.24 (0.07)	0.01096
y.4.4	0.05 (0.01)	0.05 (0.01)	0.02956
y.5.4	0.02 (0.007)	0.02 (0.007)	0.00522
y.6.4	0.01 (0.004)	0.01 (0.004)	0.04756
x.0.5	0.54 (0.09)	0.55 (0.08)	0.0085
x.1.5	0.34 (0.13)	0.36 (0.13)	0.00447
x.2.5	0.19 (0.06)	0.20 (0.05)	0.00142
x.3.5	0.10 (0.02)	0.10 (0.03)	5.10E-05
x.4.5	0.05 (0.01)	0.06 (0.01)	7.24E-05
x.5.5	0.02 (0.007)	0.02 (0.007)	0.015035
y.0.5	0.41 (0.12)	0.45 (0.12)	1.70E-05
y.1.5	0.32 (0.18)	0.34 (0.17)	0.04
y.2.5	0.16 (0.06)	0.17 (0.07)	0.01
y.4.5	0.05 (0.01)	0.05 (0.01)	0.03
y.5.5	0.02 (0.004)	0.02 (0.007)	0.00439
y.6.5	0.01 (0.004)	0.01 (0.004)	0.03607
x.1.2	1.85 (0.8)	2.01 (0.82)	0.005982
x.2.2	0.87 (0.20)	0.91 (0.21)	0.00594
x.3.2	0.46 (0.10)	0.49 (0.11)	0.00594
x.4.2	0.25 (0.05)	0.26 (0.05)	0.00594
x.5.2	0.13 (0.03)	0.13 (0.05)	0.03749
y.2.2	0.84 (0.22)	0.88 (0.24)	0.01992
y.4.2	0.26 (0.06)	0.27 (0.06)	0.03622
y.5.2	0.14 (0.03)	0.14 (0.03)	0.03622