Table 4.
Correlation of Dimensional Reduction Scores with Extracted Clinical Features and NSAA Score.
| Temporospatial Gait Clinical Features (CFs) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Com. a | Act. b | Value | SP | SF | SL | TP | VP | MP | AP | FI | NSAA * |
| SC-L1 | Corr. ** (p-value) | 0.93 (<0.0001) | 0.85 (<0.0001) | 0.72 (0.0002) | 0.82 (<0.0001) | 0.03 (1.0) | −0.44 (0.5332) | 0.55 (0.0589) | 0.81 (<0.0001) | 0.56 (0.0014) | |
| SC-L2 | Corr. ** (p-value) | 0.92 (<0.0001) | 0.85 (<0.0001) | 0.61 (0.0116) | 0.83 (<0.0001) | −0.28 (1.0) | −0.32 (1.0) | 0.74 (0.0001) | 0.74 (0.0001) | 0.4 (0.0273) | |
| PC1 1 | SC-L3 | Corr. ** (p-value) | 0.93 (<0.0001) | 0.85 (<0.0001) | 0.54 (0.0679) | 0.83 (<0.0001) | 0.29 (1.0) | −0.41 (0.8368) | 0.17 (1.0) | 0.72 (0.0003) | 0.51 (0.0041) |
| SC-L4 | Corr. ** (p-value) | 0.91 (<0.0001) | 0.85 (<0.0001) | 0.66 (0.0027) | 0.83 (<0.0001) | 0.82 (<0.0001) | −0.78 (<0.0001) | −0.23 (1.0) | 0.7 (0.0007) | 0.71 (<0.0001) | |
| SC-L5 | Corr. ** (p-value) | −0.93 (<0.0001) | −0.85 (<0.0001) | −0.83 (<0.0001) | −0.89 (<0.0001) | −0.66 (0.0023) | 0.88 (<0.0001) | −0.2 (1.0) | −0.76 (<0.0001) | −0.62 (0.0002) | |
| SC-L1 | Corr. ** (p-value) | 0.12 (1.0) | 0.15 (1.0) | 0.01 (1.0) | 0.35 (1.0) | −0.76 (0.0001) | 0.89 (<0.0001) | −0.52 (0.1481) | 0.14 (1.0) | −0.28 (0.1278) | |
| SC-L2 | Corr. ** (p-value) | 0.19 (1.0) | 0.11 (1.0) | 0.2 (1.0) | −0.43 (0.7552) | 0.85 (<0.0001) | −0.9 (<0.0001) | 0.19 (1.0) | −0.4 (1.0) | 0.19 (0.3069) | |
| PC2 2 | SC-L3 | Corr. ** (p-value) | 0.19 (1.0) | −0.32 (1.0) | 0.57 (0.0485) | −0.53 (0.1187) | 0.85 (<0.0001) | −0.72 (0.0003) | −0.25 (1.0) | −0.57 (0.0453) | 0.3 (0.1049) |
| SC-L4 | Corr. ** (p-value) | −0.19 (1.0) | 0.3 (1.0) | −0.61 (0.0144) | 0.27 (1.0) | −0.12 (1.0) | 0.45 (0.603) | −0.65 (0.004) | 0.29 (1.0) | −0.41 (0.0253) | |
| SC-L5 | Corr. ** (p-value) | −0.09 (1.0) | −0.17 (1.0) | 0.05 (1.0) | −0.42 (0.9396) | 0.56 (0.0645) | 0.11 (1.0) | −0.93 (<0.0001) | −0.54 (0.0945) | 0.29 (0.1268) | |
| SC-L1 | Corr. ** (p-value) | −0.54 (0.0695) | −0.35 (1.0) | −0.7 (0.0007) | −0.04 (1.0) | −0.07 (1.0) | 0.47 (0.3336) | −0.55 (0.0601) | −0.42 (0.7212) | −0.72 (<0.0001) | |
| SC-L2 | Corr. ** (p-value) | −0.51 (0.1305) | −0.11 (1.0) | −0.78 (<0.0001) | 0.05 (1.0) | −0.26 (1.0) | 0.42 (0.7424) | −0.25 (1.0) | −0.3 (1.0) | −0.63 (0.0002) | |
| LDA | SC-L3 | Corr. ** (p-value) | −0.64 (0.0054) | −0.02 (1.0) | −0.91 (<0.0001) | −0.05 (1.0) | −0.46 (0.3801) | 0.56 (0.044) | −0.23 (1.0) | −0.68 (<0.0001) | |
| SC-L4 | Corr. ** (p-value) | −0.65 (0.004) | −0.19 (1.0) | −0.89 (<0.0001) | −0.01 (1.0) | −0.54 (0.0732) | 0.54 (0.0795) | 0.1 (1.0) | −0.07 (1.0) | −0.79 (<0.0001) | |
| SC-L5 | Corr. ** (p-value) | −0.87 (<0.0001) | −0.59 (0.0195) | −0.92 (<0.0001) | −0.42 (0.8081) | −0.59 (0.0204) | 0.61 (0.0134) | 0.05 (1.0) | −0.18 (1.0) | −0.67 (0.0001) | |
a Components. b Activities. 1 Captures the most variation. 2 Captures the second most variation. * The Spearman rank-order correlation coefficient. ** Correlation. The level of significance was set at 0.05.