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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