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Table 2 The association between the occurrence of tonsillar ectopia and different continuous variables.

From: Tonsillar ectopia in idiopathic scoliosis: does it play a role in the pathogenesis and prognosis or is it only an incidental finding?

  Mean Range P-value
Age
Study population (scoliosis+controls) 16.5 ± 4.1 7-25  
Ectopia 15.6 ± 4.2 7-25  
No ectopia 16.9 ± 4.1 7-25 0.12
Cobb angle at the major curve
Study population (scoliosis+controls) 50.5 ± 16 11-83.9  
Ectopia 50.9 ± 17 15-73.3  
No ectopia 50.3 ± 16 11-83.9 0.85
Foramen magnum sagittal diameter, mm
Study population (scoliosis+controls) 3.5 ± 0.4 2.1-4.5  
IS 3.5 ± 0.4 2.1-4.5  
Control group 3.4 ± 0.4 2.5-4.1 0.22
Ectopia 3.4 ± 0.5 2.1-4.2  
No ectopia 3.5 ± 0.4 2.4-4.5 0.40