| |
Study group (n = 44)
|
Control group (n = 43)
|
p-value
|
|---|
|
n
|
%
|
n
|
%
|
|---|
|
Female
|
28
|
63.6
|
24
|
55.8
|
0.457
|
|
Male
|
16
|
36.4
|
19
|
44.2
|
0.457
|
|
Angle class I
|
22
|
50.0
|
21
|
48.8
|
0.914
|
|
Angle class II
|
20
|
45.5
|
17
|
39.5
|
0.577
|
|
Angle class III
|
2
|
4.5
|
5
|
11.7
|
0.225
|
|
Extractions
|
15
|
34.1
|
13
|
30.2
|
0.700
|
| |
Mean (yrs)
|
SD
|
Mean (yrs)
|
SD
| |
|---|
|
Age at T0
|
12.68
|
2.11
|
14.36
|
5.60
|
0.136
|
|
Age at T1
|
15.44
|
2.20
|
16.97
|
5.61
|
0.327
|
|
Age at T2
|
17.32
|
2.74
|
19.13
|
5.58
|
0.231
|
|
Treatment duration
|
2.73
|
0.70
|
2.61
|
0.82
|
0.236
|
|
Retention phase
|
1.89
|
1.57
|
2.15
|
0.41
|
0.706
|
- n number, yrs years, SD standard deviation
