Table 2.
Logistic regression analysis of the association between feeding duration and occlusal characteristics
| Characteristics | Breast-feeding duration | Bottle-feeding duration | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0-6 months | >6 months | 6-18 months | >18 months | ||||||||
| n (%) | n (%) | OR | 95% CI | P | n (%) | n (%) | OR | 95% CI | P | ||
| Posterior crossbite | yes | 11(3.7) | 6(1.4) | 9(3.0) | 8(1.9) | ||||||
| no | 289(96.3) | 428(98.6) | 3.13 | 1.11-8.82 | 0.031* | 296(97.0) | 421(98.1) | 2.03 | 0.73-5.66 | 0.173 | |
| No maxillary space | yes | 110(36.7) | 114(26.3) | 83(27.2) | 130(30.3) | ||||||
| no | 190(63.3) | 320(73.7) | 1.63 | 1.23-2.98 | 0.038* | 222(72.8) | 299(69.7) | 1.13 | 0.80-1.58 | 0.485 | |
| Nonmesial step | yes | 108(36.0) | 157(36.2) | 181(59.3) | 288(67.1) | ||||||
| no | 192(64.0) | 277(63.8) | 0.97 | 0.71-1.33 | 0.862 | 124(40.7) | 141(32.9) | 1.45 | 1.06-2.1 | 0.018* | |
| Class IIcanine relationship | yes | 92(30.7) | 135(31.1) | 81(26.6) | 146(34.0) | ||||||
| no | 208(69.3) | 299(68.9) | 0.94 | 0.68-1.31 | 0.713 | 224(73.4) | 283(66.0) | 1.43 | 1.03-2.0 | 0.034* | |
| Anterior open bite | yes | 3(1.0) | 4(0.9) | 3(1.0) | 4(0.9) | ||||||
| no | 297(99.0) | 430(99.1) | 0.87 | 0.18-4.26 | 0.861 | 302(99.0) | 425(99.1) | 0.61 | 0.12-3.18 | 0.559 | |
| Anterior crossbite | yes | 25(8.3) | 37(8.5) | 30(9.8) | 32(7.5) | ||||||
| no | 289(96.3) | 428(98.6) | 0.93 | 0.54-1.61 | 0.792 | 275(90.2) | 397(92.5) | 0.67 | (0.39-1.16) | 0.152 | |
Multivariate logistic regression analysis was used to the calculate odds ratio (OR) of breastfeeding duration and bottle-feeding duration developing a particular occlusion characteristic.
*Comparisons are significantly different, P < 0.05.