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Table 3 Average lower extremity joint contracture angles, estimated using a generalized estimating equation

From: Lower extremity joint contracture according to ambulatory status in children with Duchenne muscular dystrophy

Ambulatory status

Joint

Estimated average values (confidence interval)

p-value*

p-value**

Ambulatory

Hip

1.5 (0.5–2.5)

 

<.0001

Knee

3.1 (1.6–4.7)

.092

<.0001

Ankle

6.4 (4.6–8.2)

<.0001

<.0001

Non-ambulatory

Hip

23.5 (20.4–26.6)

  

Knee

43.5 (36.5–50.4)

<.0001

 

Ankle

34.5 (28.6–40.3)

.001

 
  1. *Corrected p-values for comparisons of other ankle and knee joint contracture angles with that of the hip joint
  2. **Corrected p-value for comparisons of the joint contracture angles, depending on ambulatory status