Table 4 Accuracy of surgical outcomes: equivalence comparison

Dental midline: preoperative

0

0

0–0

Dental midline: postoperative

2.803

0.391

2.037–3.569

Difference in dental midline: postoperative–preoperative

2.803

0.391

2.037–3.569

1

1

1

0.973

0.31

0.003

Width of the mandible: preoperative

11.282

0.096

11.095–11.469

Width of the mandible: postoperative

11.248

0.153

10.948–11.547

Difference in width of the mandible: postoperative–preoperative

− 0.034

0.179

− 0.385–0.316

0.359

0.009

< 0.001

< 0.001

< 0.001

< 0.001

Occlusion: preoperative

0

0

0–0

Occlusion: postoperative

1.380

0.309

− 0.409–0.801

Difference in occlusion: postoperative–preoperative

1.380

0.309

− 0.409–0.801

0.62

0.168

0.009

< 0.001

< 0.001

< 0.001

Anterior mandibular length: preoperative

28.325

0.239

27.857–28.792

Anterio mandibulr lenght: postoperative

29.291

0.238

28.824–29.758

Difference in anterior mandibulr length: postoperative – preoperative

0.966

0.253

0.471–1.462

0.999

0.96

0.448

< 0.001

< 0.001

< 0.001

Angle between mandibular borders (°): preoperative

4.539

1.015

52.471–56.449

Angle between mandibular borders (°): postoperative

5.121

1.145

52.745–57.235

Difference in angle between mandibular borders (°): postoperative−preoperative

4.798

1.073

− 1.573–2.633

0.653

0.511

0.333

0.093

0.016

0.002