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Table 3 Univariate and multivariate Poisson regression model for independent variables and for impact on quality of life (n = 1050)

From: Impact of primary dentition malocclusion on the oral health-related quality of life in preschoolers

Variable

Impact on quality of life

Bivariate

Multivariate

Absent

Present

Unadjusted prevalence ratio

Adjusted prevalence ratio

n (%)

n (%)

P

(95% CI)

P

(95% CI)

Gender

Female

352 (68.9)

159 (31.1)

 

1.00

  

Male

386 (71.6)

153 (28.4)

0.542

0.937 (0.762–1.154)

Age

2–3 years

317 (76.2)

99 (23.8)

 

1.00

  

4–5 years

421 (66.4)

213 (33.6)

0.001

1.487 (1.187–1.863)

 < 0.001

1.495 (1.193–1.873)

Malocclusion

No

463 (69.6)

202 (30.4)

 

1.00

  

Yes

275 (71.4)

110 (28.6)

0.473

0.923 (0.742–1.148)

Anterior open bite

No

719 (70.8)

296 (29.2)

 

1.00

  

Yes

19 (54.3)

16 (45.7)

0.132

1.454 (0.893–2.367)

0.096

1.514 (0.929–2.466)

Increased overjet

No

589 (69.9)

254 (30.1)

 

1.00

  

Yes

149 (72.0)

58 (28.0)

0.490

0.910 (0.695–1.190)

Posterior crossbite

No

688 (69.9)

296 (30.1)

 

1.00

  

Yes

50 (75.8)

16 (24.2)

0.461

0.841 (0.530–1.334)