Table 5: Associations Between Age, Gender and Self-Assessment of Orthodontic Treatment Need According to the Aesthetic Component of the Index of Orthodontic Treatment Need
| Variable |
Self Assessment of Need (%) |
χ2
|
Odd Ratio |
95%CI |
p |
| Need (n=107) |
No Need (n=505) |
Lower |
Upper |
| Age (years) |
|
|
|
|
|
|
|
| 12 |
12 (12.9) |
81 (87.1) |
1.59 |
0.66 |
0.33 |
1.31 |
0.21 |
| 13 |
8 (10.0) |
72 (90.0) |
3.57 |
0.49 |
0.21 |
1.09 |
0.06 |
| 14 |
19 (20.4) |
74 (79.6) |
0.66 |
1.26 |
0.70 |
2.26 |
0.42 |
| 15 |
11 (14.7) |
64 (85.3) |
0.47 |
0.79 |
0.38 |
1.61 |
0.49 |
| 16 |
17 (17.2) |
92 (82.8) |
0.01 |
0.97 |
0.53 |
1.78 |
0.93 |
| 17 |
25 (23.1) |
83 (76.9) |
2.92 |
1.55 |
0.55 |
2.64 |
0.09 |
| 18 |
15 (23.4) |
49 (76.6) |
1.76 |
1.52 |
0.78 |
2.93 |
0.19 |
| Gender |
|
|
|
|
|
|
|
| Male |
55 (18.4) |
244 (81.6) |
0.34 |
1.13 |
0.73 |
1.75 |
0.56 |
| Female |
52 (16.6) |
261 (83.4) |
0.34 |
0.88 |
0.57 |
1.37 |
0.56 |