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Table 3 Demographics and gait variables among three DHI subgroups

From: Walking stability in patients with benign paroxysmal positional vertigo: an objective assessment using wearable accelerometers and machine learning

Variables Mild (N = 12) DHI 0–30 Moderate (N = 9) DHI 31–60 Severe (N = 6) DHI 61–100
Subject characteristics
 Age (year) 62 (39.75) 63 (47) 53.5 (49.25)
 Gender 3 M + 9 F 5 M + 4 F 3 M + 3 F
 Weight (Kg) 62 (59.25) 60 (56) 56.5 (52)
 Height (cm) 161 (158.5) 160 (156) 159 (156.5)
Temporospatial variables
 Step length 73.18 (69.83) 80.57 (76.68) 75 (69.67)
 Cadence 114.06 (107.53) 111.75 (104.07) 116.11 (96.48)
 Walking speed 1.10 (1.01) 1.15 (1.06) 1.19 (0.97)
RMS
 Head, VT 0.16 (0.15) 0.17 (0.16) 0.21 (0.11)
 Head, AP 0.13 (0.12) 0.14 (0.12) 0.11 (0.09)
 Trunk, VT 0.18 (0.15) 0.17 (0.15) 0.19 (0.14)
HR
 Head, ML 1.86 (1.55) 2.00 (1.47) 1.60 (1.56)
 Trunk, VT 2.31 (1.86) 2.13 (1.77) 2.09 (1.99)
 Trunk, ML** 2.50 (2.17) 2.40 (2.10) 1.76 (1.58)
Step Regularity
 Head, VT 0.69 (0.65) 0.62 (0.53) 0.62 (0.57)
 Head, ML 0.61 (0.55) 0.69 (0.48) 0.47 (0.23)
 Head, AP* 0.87 (0.81) 0.84 (0.75) 0.82 (0.76)
Stride regularity
 Head, VT 0.78 (0.73) 0.80 (0.78) 0.76 (0.73)
Gait symmetry
 Trunk, ML 0.90 (0.84) 0.88 (0.86) 0.91 (0.74)
Gait variability
 Head, ML 0.77 (0.72) 0.85 (0.79) 0.81 (0.73)
 Head, AP 0.79 (0.73) 0.78 (0.77) 0.80 (0.73)
 Trunk, VT 0.76 (0.72) 0.79 (0.78) 0.76 (0.74)
 Trunk, AP 0.77 (0.72) 0.78 (0.76) 0.81 (0.73)
  1. DHI refers to DHI score. VT, ML, and AP refer to the vertical axis, mediolateral axis, and anteroposterior axis, respectively. * indicates p < 0.05. ** indicates p < 0.01. Parameters with significant difference between BPPV subgroups are highlighted in bold