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Table 5 Binary logistic regression analysis of relative factors and malocclusion

From: Prevalence of and factors affecting malocclusion in primary dentition among children in Xi’an, China

Variables

Prevalence of malocclusion

(present/total)

β

S.E.

P

Odds ratio (95 % CI)

Birth place

 Urban

61.59 (935/1518)

    

 Rural

76.29 (547/717)

1.825

0.309

0.027

1.741 (1.384–2.162)

Insufficient abrasion of primary canines

 Present

73.28 (181/247)

    

 Absent

65.44 (1301/1988)

0.363

0.395

0.037

1.465 (1.153–.894)

Caries among primary teeth

 Present

68.08 (1171/1720)

    

 Absent

60.39 (311/515)

1.296

0.78

<0.001

2.045 (1.665–2.539)

Tongue thrusting

 Present

84.38 (54/64)

    

 Absent

65.78 (1428/2171)

0.725

0.114

0.041

2.833 (1.640–3.649)

Mandibular prognathism

 Present

82.86 (29/35)

    

 Absent

66.05 (1453/2200)

0.855

0.101

0.023

2.621 (1.574–3.689)

Finger sucking

 Present

54.25 (287/400)

    

 Absent

48.50 (1195/2835)

0.642

0.173

<0.001

1.573 (1.098–2.014)

Feeding methods

 Breast milk

23.10 (131/567)

    

 Milk powder

76.78 (443/577)

    

 Both

83.23 (908/1091)

1.090

0.347

0.012

3.614 (3.087–4.596)

Delivery methods

 Natural labor

62.97 (670/1064)

    

 Caesarean

69.34 (812/1171)

0.596

0.047

0.028

1.847 (1.323–2.451)

Parental attitude toward the problem of malocclusion

 Paid positive attention

52.81 (293/409)

    

 Not concerned

69.33 (1189/1826)

1.080

0.452

0.039

1.572 (1.201–2.512)