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Table 3 Influence of potential factors on the objectively measured walking distance

From: Gait analysis does not correlate with clinical and MR imaging parameters in patients with symptomatic lumbar spinal stenosis

Potential factors

Bivariate Analysis (with metric walking distance)

Multiple Analysis (Ordinal regession analysis with categorized walking distance)

 

Test parameter/significance

Test parameter/significance

Age

-0.024

--

Gender

4251)

--

Height

0.066

--

Weight

-0. 121

--

Body Mass index (BMI)

-0.194*

-0.079

Functional status (FFbH-R)

0.225*

+0.017

Depression Score (CES-D)

-0.053

--

Area L1/2

-0.188*

-0.017*

Area L2/3

-0.140

--

Area L3/4

-0.004

--

Area L4/5

-0.115

--

Area L5/S1

-0.058

--

Number of segments with less than 100 mm2

-0.106

--

Mean canal diameter of the dural sac mm2

-0.142

--

Number of segments with less than 70 mm2

0.029

--

More than two segments with less than 70 mm2

2951)

--

Lowest area of all segments

-0.113

--

  1. n = 63, significance limit: p < 0.05 (*)
  2. 1) Test value from Mann-Whitney U test, otherwise Kendall's Tau B