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

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