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Table 1 The association between the occurrence of tonsillar ectopia and different categorical variables.

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

Tonsillar ectopia

 

Yes

No

P-value

IS

29 (37%)

50 (63%)

 

Control

10 (13%)

66 (87%)

< 0.001

Odds Ratio 3.8 (95% CI 1.7-8.5)

Gender

 

Male

Female

 

Ectopia

16 (55%)

23 (45%)

 

No ectopia

20 (40%)

30 (60%)

0.54

Neurological deficit

 

Yes

No

 

Ectopia

6 (21%)

23 (79%)

 

No ectopia

5 (10%)

45 (90%)

0.31

Pain

 

Yes

No

 

Ectopia

10 (34%)

19 (66%)

 

No ectopia

16 (32%)

34 (68%)

0.82

Rapid progression of scoliosis

 

Yes

No

 

Ectopia

4 (14%)

25 (86%)

 

No ectopia

9 (18%)

41 (82%)

0.76

Atypical scoliosis

 

Yes

No

 

Ectopia

1 (3%)

28 (97%)

 

No ectopia

7 (14%)

43 (86%)

0.24

Occurrence of tonsillar ectopia among patients with IS only vs those with IS and other associated abnormalities

 

Yes

No

 

Ectopia

19 (37%)

10 (36%)

 

No ectopia

32 (63%)

18 (64%)

1.0