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Table 1 Description of independent variables for all children and children with malocclusion

From: Occlusal characteristics in 3-year-old children – results of a birth cohort study

Variables All children (n = 377) Children with Malocclusion (n = 170) Fisher exact test
  % (n) % (n) OR 95 % CI P-value
Gender Male 52.4 197 47.2 93 0.84 0.56–1.27 0.468
Female 47.6 180 43.0 77
Migration background Yes 6.1 23 39.1 9 0.77 0.32–1.82 0.667
No 93.9 354 45.6 161
Low socioeconomic status Yes 9.3 35 40.0 14 0.79 0.39–1.61 0.594
No 90.7 342 45.6 156
Preterm birth Yes 4.3 16 43.8 7 0.94 0.34–2.58 1.000
No 95.7 361 45.3 163
General disease/special health care needs Yes 7.2 27 29.6 8 0.49 0.21–1.14 0.109
No 92.8 350 46.4 162
Mouthbreathing Yes 0.5 2 100.0 2 a a 0.204
No 99.5 375 44.9 168
Allergic rhinitis Yes 1.6 6 33.3 2 0.60 0.11–3.32 0.694
No 98.4 371 45.4 168
Breastfeeding Yes 66.8 251 44.2 111 0.89 0.58–1.36 0.660
No 33.2 126 47.2 59
Bottlefeeding >15 months Yes 24.7 93 49.5 46 1.36 0.70–2.67 0.398
No 75.3 284 41.8 23
Drink learn cup Yes 85.4 321 44.2 142 0.77 0.43–1.36 0.382
No 14.6 55 50.9 28
Pacifier Yes 80.6 304 50.5 153 3.36 1.87–6.05 0.001
No 19.4 73 23.3 17
Thumb/finger sucking Yes 4.3 16 100.0 16 a a 0.001
No 95.7 361 42.8 154
Dental trauma Yes 12.8 48 58.3 28 1.83 0.99–3.34 0.062
No 87.2 329 43.3 142
  1. aAll children with the independent variable had a malocclusion. Odds ratio (OR) was mathematically incalculable