Table 4 Linear regression analysis of multiple predictors for actual tooth movement of upper first molars
Predictor | Extrusion | Mesial tipping | Mesial Movement | |||
|---|---|---|---|---|---|---|
β (95%CI) | p value | β (95%CI) | p value | β (95%CI) | p value | |
Age | ||||||
Adolescent | 0.96 (0.35, 1.57) | 0.003 | − 0.29 (− 5.69, 5.11) | 0.91 | − 0.53 (− 1.74, 0.67) | 0.38 |
Adult | Referent | Referent | Referent | |||
Gender | ||||||
Female | − 0.19 (− 0.69, 0.3) | 0.44 | − 0.41 (− 4.8, 3.98) | 0.85 | 0.88 (− 0.10, 1.86) | 0.08 |
Male | Referent | Referent | Referent | |||
Crowding | 0.039 (− 0.01, 0.09) | 0.12 | − 0.35 (− 0.76, − 0.06) | 0.09 | − 0.25 (− 0.35, − 0.15) | < 0.001 |
Mini-implant | 0.06 (− 0.54, 0.65) | 0.85 | 3.02 (− 2.3, 8.34) | 0.26 | − 0.01 (− 1.19, 1.17) | 0.99 |
Overbite | − 0.09 (− 0.23, 0.06) | 0.22 | 1.5 (0.21, 2.79) | 0.023 | − 0.09 (− 0.23, 0.06) | 0.22 |
Overjet | 0.002 (− 0.12, 0.12) | 0.97 | 0.06 (− 1.05, 1.16) | 0.91 | 0.002 (− 0.12, 0.12) | 0.97 |
Attachment | ||||||
Horizontal | 0.16 (− 0.38, 0.71) | 0.55 | − 0.71 (− 5.59, 4.17) | 0.77 | − 0.06 (− 1.15, 1.02) | 0.91 |
G6 | 0.17 (− 0.35, 0.68) | 0.52 | − 4.42 (− 8.96, 0.12) | 0.06 | − 0.05 (− 1.06, 0.96) | 0.92 |
Vertical | Referent | Referent | Referent | |||