Table 1 Clinical parameters associated with orthodontic treatment duration.
From: The effect of genetic polymorphisms on treatment duration following premolar extraction
Clinical parameters | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
Beta (95% CI) | P value | Beta (95% CI) | P value | |
Age | 0.1090 (− 0.0358 to 0.2537) | 0.1387 |  |  |
Gender | 0.0004 (− 0.0090 to 0.0099) | 0.928 |  |  |
Angle classification | 0.0008 (− 0.0150 to 0.0165) | 0.9247 |  |  |
Horizontal anterior retraction (mm) | 0.1026 (0.0406 to 0.1646) | 0.0014 | 0.5889 (0.0102 to 1.1676) | 0.0485 |
Crowding (mm) | − 0.1241 (− 0.2049 to − 0.0433) | 0.0029 | − 0.3441 (− 1.4399 to 0.7517) | 0.5394 |
Displacement (mm) | − 0.1104 (− 0.1852 to − 0.0357) | 0.0041 | − 0.0299 (− 1.2154 to 1.1556) | 0.9607 |
Overjet (mm) | − 0.0217 (− 0.0749 to 0.0316) | 0.4215 |  |  |
Overbite (mm) | 0.0244 (− 0.0236 to 0.0724) | 0.3158 |  |  |
ANB (T1) | 0.0120 (− 0.0445 to 0.0685) | 0.6751 |  |  |
ANB (T2) | 0.0078 (− 0.0500 to 0.0657) | 0.7887 |  |  |
PAR (unweighted) | − 0.0565 (− 0.1181 to 0.0052) | 0.0725 |  |  |
PAR (weighted) | − 0.1054 (− 0.3368 to 0.1259) | 0.3687 |  |  |
FMA (T1) | − 0.0708 (− 0.1985 to 0.057) | 0.2748 |  |  |
FMA (T2) | − 0.1105 (− 0.3126 to 0.0915) | 0.2809 |  |  |
U1 to SN (T1) | 0.0497 (− 0.1146 to 0.2139) | 0.5504 |  |  |
U1 to SN (T2) | − 0.0072 (− 0.15 to 0.1356) | 0.9207 |  |  |
