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Table 2 Logistic regression analysis of the association between feeding duration and occlusal characteristics

From: Effects of breast-feeding duration, bottle-feeding duration and non-nutritive sucking habits on the occlusal characteristics of primary dentition

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

  1. Multivariate logistic regression analysis was used to the calculate odds ratio (OR) of breastfeeding duration and bottle-feeding duration developing a particular occlusion characteristic.
  2. *Comparisons are significantly different, P < 0.05.