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) |