Table 8.
Association between breastfeeding duration and prevalence of anterior open bite, with odds ratio (OR) calculation, in children without history of pacifier and/or finger-sucking habits (n=503)
| Comparisons | χ2 | p value | OR | p value |
|---|---|---|---|---|
| G1/G2 | 3.78 | 0.052 | - | - |
| G1/G3 | 2.77 | 0.096 | - | - |
| G1/G4 | 6.76 | 0.009 | 9.30 | 0.009** |
| G2/G3 | 0.06 | 0.806 | - | - |
| G2/G4 | 0.39 | 0.532 | - | - |
| G3/G4 | 0.73 | 0.391 | - | - |
G1: non-breastfed. G2: shorter than 6 months. G3: interruption between 6 and 12 months. G4: longer than 12 months. c2: chi-square value.
**
: p value<0.01