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Table 2 Odds ratio analysis of medical history and orofacial development items (Part 1)

From: Proposal for a screening questionnaire for detecting habitual mouth breathing, based on a mouth-breathing habit score

  

Percent applicable (%)

Odds ratio

Nose breathing group

Mouth breathing group

Medical history

Asthma (before age 16)

4.1

28.6

9.33a

 

Asthma (age 16 or older)

2.7

10.7

4.26

 

Allergic rhinitis

4.1

10.7

2.80

 

Atopy (allergies)

2.7

7.1

2.73

 

History of smoking

28.8

35.7

1.38

Orofacial development

Open mouth at rest

1.4

21.4

19.64a

 

Tongue thrust during swallowing

4.1

42.9

17.50a

 

Maxillary protrusion

2.7

28.6

14.20a

 

Increased chin muscle tonus

1.4

14.3

12.00a

 

Mandibular protrusion

4.1

17.9

5.07a

 

Crowding

23.3

28.6

1.32

 

Edge-to-edge bite

6.8

3.6

0.5

 

Excessive overbite

1.4

0

0

 

Underbite

0

3.6

 

Open bite

0

7.1

  1. aSignificance