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Progress in Orthodontics

Table 7 Intergroup comparisons of adjusted means for post-treatment cephalometric measurements with pre-treatment measurements as covariates

From: Dentofacial effects of miniscrew-anchored maxillary protraction on prepubertal children with maxillary deficiency: a randomized controlled trial

Variable

Control group

Treated group

Difference (Treated-Control)

 

p value

Adjusted T1 Mean

Adjusted T1 Mean

Mean

95% CI

 

Or-VR (mm)

51.52

54.19

2.68

2.41–2.94

< 0.001*

Ptm-VR (mm)

18.49

20.44

1.95

1.78–2.11

< 0.001*

A-VR (mm)

57.12

60.58

3.46

3.12–3.81

< 0.001*

B-VR (mm)

58.43

56.74

− 1.69

− 2.03 to − 1.36

< 0.001*

Pg-VR (mm)

59.68

57.87

− 1.81

− 2.14 to − 1.48

< 0.001*

A-NPerp (mm)

− 3.05

1.73

4.77

4.49–5.06

< 0.001*

Wits (mm)

− 4.60

0.30

4.89

4.27–5.52

< 0.001*

Co-A (mm)

75.32

78.74

3.314

3.01–3.82

< 0.001*

Co-Gn (mm)

104.72

104.11

− 0.61

− 1.15 to − 0.07

0.028*

SNA (°)

77.87

82.06

4.19

3.68–4.69

< 0.001*

SNB (°)

81.82

80.54

− 1.28

− 1.69 to − 0.87

< 0.001*

ANB (°)

3.92

− 1.49

− 5.41

− 6.13 to − 4.69

< 0.001*

SNO (°)

55.18

57.65

2.47

2.18–2.76

< 0.001*

ANS-Me (mm)

55.52

56.02

0.51

0.19–0.83

0.003*

SN-MP (°)

35.39

35.84

0.45

− 0.21 to 1.10

0.171

SN-PP (°)

10.88

11.28

0.39

− 0.33 to 1.13

0.275

Ar-Go-Me (°)

132.25

130.07

− 2.16

− 2.68 to − 1.67

< 0.001*

Is-yMx (mm)

47.87

49.39

1.53

1.15–1.90

< 0.001*

Ms-yMx (mm)

19.11

19.64

0.53

0.24–0.82

< 0.001*

Ii-yMd (mm)

59.07

60.69

1.62

1.38–1.87

< 0.001*

Overjet (mm)

− 3.03

2.46

5.49

5.15–5.84

< 0.001*

Is-PP (°)

116.36

118.32

1.95

0.45–3.47

0.013*

Ii-MP (°)

86.95

87.57

0.62

0.23–1.01

0.003*

Is-xMx (mm)

25.57

25.70

0.12

− 0.06 to 0.31

0.173

Ms-xMx (mm)

19.19

19.98

0.78

0.49–1.08

< 0.001*

Ii-xMd (mm)

36.64

36.82

0.18

0.03–0.32

0.019*

Overbite (mm)

2.73

1.89

− 0.84

− 1.05 to − 0.63

< 0.001*

A’-VR (mm)

73.58

77.25

3.67

3.22–4.12

< 0.001*

Ls-VR (mm)

79.47

81.65

2.18

1.38–2.97

< 0.001*

Li-VR (mm)

79.97

78.35

− 1.62

− 1.98 to − 1.25

< 0.001*

B’-VR (mm)

72.06

70.30

− 1.76

− 2.14 to − 1.38

< 0.001*

Pg’-VR (mm)

75.17

72.78

− 2.39

− 2.62 to − 2.16

< 0.001*

  1. CI confidence interval
  2. *Statistically significant at P < 0.05, analysis of covariance (complete case analysis)
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