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Progress in Orthodontics

Table 4 Results of multiple linear regression analysis including the relapse of mandibular Little irregularity index (Md Little T3-2) as dependent variable and sex, type of malocclusion, age at long-term posttreatment follow-up, retention time and initial mandibular Little irregularity index as independent variables

From: Incisor irregularity and dental arch dimensions changes in subjects with different severity of anterior crowding: a 37-year follow-up

N = 41

b*

Std.Err

of b*

b

Std.Err

of b

t(35)

p-value

Intercept

  

− 0.794

5.029

− 0.158

0.875

Sex

0.116

0.160

0.623

0.862

0.723

0.475

Type of malocclusion

− 0.056

0.184

− 0.293

0.969

− 0.303

0.764

Age at T3

0.119

0.176

0.056

0.083

0.679

0.502

Retention time

− 0.072

0.191

− 0.171

0.455

− 0.376

0.709

Md Little T1

0.345

0.192

0.221

0.123

1.796

0.081

  1. Regression summary for dependent variable: Md Little T3-2
  2. R = 0,340, R2 = 0,116 Adjusted R2 = - F(5,35) = 0,916
  3. p < 0,482 Std Error of estimate: 2,635
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