Table 6 Multivariate logistic regression analysis results for accuracy

Sex (female vs. male)

1.085

0.965 to 1.221

0.172

Age

0.991

0.975 to 1.009

0.324

Work

(layperson vs. orthodontist)

0.797

0.712 to 0.891

 < 0.001

Degree of asymmetry

of image (mm)

2.301

2.143 to 2.472

 < 0.001

Level of degree of asymmetry of image

 Moderate vs. mild

2.657

2.321 to 3.041

 < 0.001

 Severe vs. mild

5.256

4.558 to 6.062

 < 0.001

Type of asymmetry of image

 Vertical vs. horizontal

0.753

0.656 to 0.865

 < 0.001

 Sagittal vs. horizontal

0.429

0.374 to 0.493

 < 0.001

 Sagittal vs. vertical

0.570

0.498 to 0.653

 < 0.001

Part of asymmetry of image

 go vs. mt

0.151

0.127 to 0.179

 < 0.001

 ch vs. mt

0.388

0.328 to 0.460

 < 0.001

 zy vs. mt

0.142

0.120 to 0.168

 < 0.001

 ch vs. go

2.574

2.208 to 2.999

 < 0.001

 zy vs. go

0.940

0.809 to 1.093

0.421

 zy vs. ch

0.365

0.313 to 0.426

 < 0.001