Table 1 Demographic characteristics of patients.

From: Evaluation of pharyngeal airway space after orthodontic extraction treatment in class II malocclusion integrating with the subjective sleep quality assessment

Variables

Normodivergent nonextraction (n = 30)

Normodivergent extraction (n = 23)

Hyperdivergent extraction (n = 26)

p-value

Gender, male:female

7:23

5:18

2:24

NSғ

Age (years) (range of age)

24.52 ± 5.68 (18.35–35.71)

22.89 ± 5.54 (18.21–38.91)

22.77 ± 4.98 (18.03–36.64)

NS†

Body mass index (kg/m2)

20.57 ± 2.01

20.34 ± 2.34

20.80 ± 2.57

NS†

Treatment duration (years)

2.45 ± 0.87

2.95 ± 0.83

2.94 ± 0.84

0.049†*

Skeletal pattern

 Class I:Class II

15:15

9:14

8:18

NS₭

 ANB (°)

5.77 ± 2.20

6.32 ± 2.57

6.83 ± 2.75

NS†

 SN-MP (°)

32.60 ± 3.48

33.33 ± 3.36

45.28 ± 4.36

 < 0.001†**

Extraction pattern, 2 or 4 premolars

0 : 30

3 : 20

1 : 25

-

  1. NS not significant.
  2. *p < 0.05, **p < 0.001.
  3. P values calculated using ғFisher exact test, †one-way ANOVA, ₭Chi-square test.
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