Table 2.
Variables | Training set (n = 920) | Validation set (n = 395) | ||||
---|---|---|---|---|---|---|
Non-MCR (n = 834) | MCR (n = 86) | p | Non-MCR (n = 358) | MCR (n = 37) | p | |
Gait analysis, median (IQR) | ||||||
Stance phase (%GC) | 67.47 (66.10, 68.76) | 68.97 (67.86, 70.53) | <0.001 | 67.25 (66.13, 68.52) | 69.06 (68.02, 70.01) | <0.001 |
Swing phase (%GC) | 32.52 (31.23, 33.89) | 31.02 (29.47, 32.14) | <0.001 | 32.73 (31.47, 33.86) | 30.93 (29.98, 31.98) | <0.001 |
Double support phase (%GC) | 35.14 (32.91, 37.38) | 38.19 (36.75, 40.57) | <0.001 | 35.27 (33.03, 37.53) | 38.52 (36.76, 40.01) | <0.001 |
Step width (m) | 0.14 (0.12, 0.15) | 0.15 (0.13, 0.16) | <0.001 | 0.13 (0.12, 0.15) | 0.14 (0.13, 0.17) | 0.001 |
Step stride (m) | 1.11 (1.01, 1.20) | 0.92 (0.80, 0.97) | <0.001 | 1.11 (1.03, 1.20) | 0.89 (0.74, 0.95) | <0.001 |
Step height (m) | 0.12 (0.10, 0.13) | 0.10 (0.09, 0.11) | <0.001 | 0.12 (0.10, 0.13) | 0.10 (0.09, 0.11) | <0.001 |
Step cadence (steps/min) | 109.19 (102.94, 116.25) | 100.00 (92.85, 104.41) | <0.001 | 109.19 (102.94, 116.25) | 102.94 (95.00, 109.19) | <0.001 |
Gait speed (m/s) | 0.97 (0.87, 1.07) | 0.71 (0.64, 0.79) | <0.001 | 0.99 (0.90, 1.09) | 0.69 (0.64, 0.79) | <0.001 |
Stride speed (m/s) | 1.00 (0.91, 1.11) | 0.74 (0.66, 0.81) | <0.001 | 1.01 (0.93, 1.11) | 0.74 (0.67, 0.80) | <0.001 |
Swing speed (m/s) | 2.41 (2.19, 2.62) | 1.86 (1.68, 2.04) | <0.001 | 2.45 (2.23, 2.65) | 1.86 (1.72, 2.03) | <0.001 |
Turn time (s) | 1.30 (1.10, 1.53) | 1.66 (1.43, 2.06) | <0.001 | 1.30 (1.13, 1.50) | 1.66 (1.40, 2.16) | <0.001 |
TUG test, median (IQR) | ||||||
Test time (s) | 10.45 (9.21, 11.97) | 14.15 (12.44, 15.84) | <0.001 | 10.37 (9.28, 11.77) | 13.86 (12.56, 15.13) | <0.001 |
Sit-to-stand time (s) | 0.56 (0.46, 0.70) | 0.66 (0.53, 0.83) | <0.001 | 0.56 (0.46, 0.70) | 0.56 (0.50, 0.73) | 0.630 |
Stand-to-sit time (s) | 0.53 (0.46, 0.66) | 0.60 (0.51, 0.80) | <0.001 | 0.53 (0.46, 0.66) | 0.60 (0.50, 0.73) | 0.071 |
Turnaround time (s) | 1.23 (0.93, 1.56) | 1.56 (1.26, 1.95) | <0.001 | 1.16 (0.90, 1.46) | 1.56 (1.36, 2.03) | <0.001 |
TUG test: Time Up and Go test; %GC: Percent of gait cycle.