Research Article

Impact of Malocclusions on the Oral Health-Related Quality of Life of Early Adolescents in Ndola, Zambia

Table 6

Influence of sociodemographics and malocclusions on OHRQoL: multivariate logistic regression (AOR).

VariablesCategoriesModel 1Model 2Model 3Model 4
AOR (95% CI)AOR (95% CI)AOR (95% CI)AOR (95% CI)

Age121111
1318.64 (2.05–169.83)19.18 (2.09–176.07)18.85 (2.08–170.71)19.02 (2.06–175.85)
1425.01 (2.76–226.47)25.58 (2.80–233.76)25.22 (2.79–227.97)27.34 (2.97–251.36)

SexMale1111
Female7.90 (2.87–21.78)7.67 (2.82–20.86)7.56 (2.82–20.31)7.40 (2.78–19.67)

CrowdingNo1111
Yes3.05 (1.04–8.96)3.19 (1.10–9.22)3.16 (1.10–9.07)3.93 (1.46–10.60)

SpacingNo1111
Yes4.37 (1.35–14.10)4.55 (1.42–14.55)4.62 (1.47–14.55)4.32 (1.38–13.55)

DiastemaNo1111
Yes4.17 (1.32–13.20)4.15 (1.30–13.21)4.00 (1.33–12.00)3.96 (1.31–11.97)

Anteriomandibular overjetNo111
Yes10.34 (0.32–331.20)13.32 (0.49–363.72)12.45 (0.46–337.92)

Vertical anterior open biteNo11
Yes0.84 (0.20–3.56)0.87 (0.21–3.64)

Anterioposterior molar relationNo1
Yes1.36 (0.35–5.23)

Total384384384384

AOR: adjusted odds ratio; CI: confidence interval; OHRQoL: oral health-related quality of life; ; ; ( is significant).