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Progress in Orthodontics

Table 5 Descriptive statistics and statistical comparisons (independent-samples t tests) of the T2-T1 changes

From: Dentoskeletal effects of early class III treatment protocol based on timing of intervention in children

Variables

Prepubertal

Pubertal

Diff

P value

95% CI of the difference

Mean Median

SD IQR

Mean Median

SD IQR

Lower

Upper

SNA (°)

1.5

1.5

0.8

1.6

0.6

0.166

 − 0.3

1.7

SNB (°)

 − 0.3

2.0

0.1

2.0

 − 0.2

0.295

  

ANB (°)

1.8

1.2

1.1

2.1

0.7

0.129

 − 0.2

1.8

Wits (mm)

3.0

2.2

2.0

2.7

1.0

0.159

 − 0.4

2.6

Co-Gn (mm)

3.7

1.9

3.4

1.7

0.2

0.687

 − 0.9

1.4

SN-Pal. Pl. (°)

 − 0.2

1.7

 − 0.6

1.5

0.3

0.436

 − 0.6

1.4

SN-GoMe (°)

 − 0.4

2.0

 − 0.8

2.9

0.4

0.941

  

Pal. Pl.-Mand.Pl (°)

0.0

2.3

0.8

2.0

 − 0.8

0.266

 − 2.1

0.6

ArGoMe (°)

 − 1.1

1.2

 − 1.2

1.5

0.1

0.868

 − 0.8

0.9

Pal. Pl.-Occl. Pl. (°)

 − 0.1

2.8

 − 0.5

2.1

0.4

0.593

 − 1.2

2.0

Occl. Pl.-Mand. Pl. (°)

0.1

2.6

1.3

2.3

 − 1.2

0.124

 − 2.8

0.3

I^SN (°)

2.4

8.0

 − 0.6

5.6

3.0

0.185

 − 1.5

7.4

I^Pal. Pl. (°)

 − 2.2

8.7

1.5

3.8

 − 3.7

0.096

 − 8.1

0.7

IMPA (°)

 − 3.0

5.1

 − 3.8

4.6

0.8

0.600

 − 2.3

3.9

  1. Italics indicates the value for the Median and for the Interquartile Range (IQR)
  2. SD standard deviations; IQR Interquartile range; Diff. difference; CI confidence interval; Pal. palatal; Pl. plane; Mand. mandibular; Occl. occlusal
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