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Table 4 Factors affecting the talo-first metatarsal angle according to the GMFCS level

From: Progression of planovalgus deformity in patients with cerebral palsy

 

Estimate

95% CI

p Value

GMFCS level I

 Intercept

12.16

7.88 to 16.44

<0.0001

 Age

-0.00

-0.20 to 0.19

0.9819

 Sex (male)

-1.86

-5.09 to 1.38

0.2563

 Involvement (bilateral)

2.80

-0.53 to 6.12

0.0977

 No TAL/Strayer

4.23

1.36 to 7.09

0.0044

 Side (left)

1.85

-0.00 to 3.70

0.0503

GMFCS level II

 Intercept

16.68

9.90 to 23.46

<0.0001

 Age

0.48

0.20 to 0.76

0.0010

 Sex (male)

-1.62

-5.24 to 2.01

0.3785

 Involvement (bilateral)

-0.54

-6.64 to 5.57

0.8618

 No TAL/Strayer

-3.10

-6.19 to -0.00

0.0500

 Side (left)

1.18

-0.35 to 2.72

0.1296

GMFCS level III

 Intercept

12.63

-4.53 to 29.80

0.1430

 Age

0.52

0.18 to 0.86

0.0036

 Sex (male)

4.89

-1.02 to 10.79

0.1036

 Involvement (bilateral)

4.94

-11.77 to 21.65

0.5578

 No TAL/Strayer

-5.76

-14.69 to 3.17

0.2026

 Side (left)

0.31

-1.91 to 2.54

0.7793

  1. Linear mixed model was used to estimate factors affecting the talo-first metatarsal angle. The Akaike information criteria were 1708, 1562, and 941 for each model
  2. GMFCS Gross Motor Function Classification System, CI confidence interval, TAL tendo-Achilles lengthening