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Table 7 Predictor factors for root resorption (mm) as dependent variable by using univariate and multivariate model

From: The influence of bracket type on the external apical root resorption in class I extraction patients - a retrospective study

Predictor variables

Category

Univariate model

Multivariate model

b

SE

P value

b

SE

P value

Appliance

Conventional

baseline

  

baseline

  

Self-ligating

0.42

0.22

NS

0.35

0.16

0.04

Treatment duration

1 month

0.05

0.01

0.03

0.05

0.04

0.02

Sex

Female

baseline

     

Male

0.32

0.45

NS

   

Age

1 year

0.24

0.18

NS