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Table 5 Regression coefficients, standard error, t-values, and p-values for multivariate regression models to UPDRS-gait and SAS-gait with 3D gait features

From: Assessment of Parkinsonian gait in older adults with dementia via human pose tracking in video data

 

UPDRS-gait

SAS-gait

Regression Coefficient

Std. Error

t-value

p-value

Regression Coefficient

Std. Error

t-value

p-value

Coefficients

age

0.098

0.015

6.4

< 0.001**

0.068

0.014

5.0

< 0.001**

sex (male)

1.6

0.24

6.6

< 0.001**

2.2

0.24

9.0

< 0.001**

walking speed (m/s)

−5.7

0.96

−5.9

< 0.001**

−3.2

0.81

−3.9

< 0.001**

step width symmetry angle (degrees)

−0.065

0.019

−3.4

< 0.001**

−0.070

0.018

−3.9

< 0.001**

RMS sacrum ML velocity

−8.9

2.0

−4.5

< 0.001**

−2.6

1.9

−1.4

0.17

step length symmetry angle (degrees)

0.074

0.022

3.4

< 0.001**

0.11

0.021

5.4

< 0.001**

average MOS (mm)

−7.7

5.0

−1.6

0.12

−7.4

4.4

−1.7

0.093

step width (m)

−3.5

3.2

−1.1

0.27

−9.4

2.9

−3.2

0.0014**

step time symmetry angle (degrees)

N/A

N/A

N/A

N/A

−0.13

0.021

−6.0

< 0.001**

Intercepts

0|1

0.65

1.5

0.42

0.68

−0.89

1.4

−0.62

0.54

1|2

3.0

1.6

1.9

0.052

1.7

1.5

1.1

0.26

2|3

49

1.6

31

< 0.001**

4.3

1.5

3.0

0.0032**

3|4

50.

1.6

32

< 0.001**

3500

1.5

2400

< 0.001**

  1. *significant at p < 0.05, **significant at p < 0.01