Table 2 The use of ankle foot-orthoses reported by country, birth year group (Model 1), subtype of cerebral palsy (Model 2), gross motor function classification system (GMFCS) level (Model 3), and sex (Model 4) with the reference group in italics

Country

 Sweden

 Norway

1.17 (1.03–1.32)

0.014

1.11 (0.97–1.28)

0.141

1.37 (1.20–1.56)

< 0.001

1.17 (1.03–1.32)

0.014

 Finland

0.72 (0.60–0.88)

0.001

0.68 (0.55–0.85)

0.001

0.74 (0.60–0.91)

0.004

0.72 (0.59–0.88)

0.001

 Iceland

0.65 (0.41–1.04)

0.071

0.52 (0.31–0.86)

0.011

0.58 (0.35–0.95)

0.032

0.65 (0.41–1.04)

0.071

 Scotland

1.26 (1.13–1.41)

< 0.001

1.09 (0.96–1.25)

0.176

1.20 (1.07–1.35)

0.002

1.27 (1.13–1.42)

< 0.001

 Denmark

0.48 (0.42–0.56)

< 0.001

0.43 (0.37–0.50)

< 0.001

0.50 (0.43–0.57)

< 0.001

0.48 (0.42–0.55)

< 0.001

Birth year

 2000–2005

 2006–2011

1.53 (1.38 − 1.69)

< 0.001

1.68 (1.50–1.89)

< 0.001

1.70 (1.53–1.90)

< 0.001

1.54 (1.38–1.70)

< 0.001

 2012–2018

1.32 (1.18–1.48)

< 0.001

1.61 (1.40–1.85)

< 0.001

1.42 (1.26–1.60)

< 0.001

1.33 (1.18–1.49)

< 0.001

CP Subtype

 Spastic unilateral

 Ataxic

0.34 (0.25–0.47)

< 0.001

 Dyskinetic

2.01 (1.70–2.41)

< 0.001

 Spastic Bilateral

2.17 (1.95–2.41)

< 0.001

GMFCS level

 I

 II

2.22 (1.97–2.51)

< 0.001

 III

4.43 (3.74–5.23)

< 0.001

 IV

4.84 (3.74–5.60)

< 0.001

 V

3.84 (3.38–4.37)

< 0.001

Sex

 Male

 Female

1.09 (1.00–1.18)

0.054

N

8928

7134

8910

8920

Constant

-0.204

< 0.001

-0.579

< 0.001

0.976

< 0.001

-0.243

< 0.001

Nagelkerke

0.035

0.102

0.158

0.036