Skip to main content

Table 4 Cox proportional hazard models

From: Intraoral photobiomodulation-induced orthodontic tooth alignment: a preliminary study

 

Model 1

Model 2

Model 3

Model 4

Model 5

Age

0.886

0.837

0.819

0.657*

0.672*

Female

1.071

1.288

1.164

1.156

 

Caucasian

1.004

1.144

1.245

1.477

 

Mandible

 

0.480+

0.756

0.829

 

Crowding (LII - mm)

  

0.544*

0.549+

0.513+

PBM

   

4.661**

4.397**

Arches

28

28

28

28

28

Failures

28

28

28

28

28

N

37

37

37

37

37

dF

3

4

5

6

3

chi2

0.813

3.549

9.315

17.725

16.786

  1. + p < 0.010, * p < 0.05 ** p < 0.01
Back to article page

BMC Oral Health

ISSN: 1472-6831

Contact us