Table 4 Logistic regression models of factors associated with HIV prevalence among adolescents aged 12–19 years
Variables | Univariate regression | Multivariate regression | ||||
|---|---|---|---|---|---|---|
OR | 95% CI | p-value | AOR | 95% CI | p-value | |
Year | ||||||
2008 | Ref | – | – | Ref | – | – |
2012 | 1.00 | 0.76–1.32 | 0.997 | 0.98 | 0.70–1.37 | 0.927 |
2017 | 1.31 | 1.00–1.73 | 0.051 | 1.34 | 0.99–1.83 | 0.061 |
Age in years | ||||||
12–14 | Ref | – | – | Ref | – | – |
15–19 | 1.80 | 1.42–2.30 | < 0.001 | 1.14 | 0.84–1.55 | 0.387 |
Sex | ||||||
Male | Ref | – | – | Ref | – | – |
Female | 2.59 | 2.05–3.27 | < 0.001 | 2.24 | 1.73–2.91 | < 0.001 |
Race | ||||||
African | Ref | – | – | Ref | – | – |
White | 0.18 | 0.07–0.48 | 0.001 | 0.29 | 0.09–0.93 | 0.037 |
Coloured | 0.17 | 0.10–0.28 | < 0.001 | 0.21 | 0.11–0.37 | < 0.001 |
Indian/Asian | 0.09 | 0.03–0.29 | < 0.001 | 0.08 | 0.02–0.34 | 0.001 |
Locality | ||||||
Rural areas | Ref | – | – | Re | – | – |
Urban areas | 0.60 | 0.48–0.73 | < 0.001 | 1.14 | 0.73–1.24 | 0.685 |
Province | ||||||
Northern Cape | Ref | – | – | Ref | – | – |
Western Cape | 0.81 | 0.40–1.61 | 0.541 | 1.42 | 0.66–3.06 | 0.368 |
Eastern Cape | 1.95 | 1.09–3.49 | 0.025 | 1.49 | 0.76–2.95 | 0.248 |
Free State | 2.10 | 1.10–3.99 | 0.024 | 1.61 | 0.78–3.33 | 0.193 |
KwaZulu-Natal | 2.71 | 1.57–4.67 | < 0.001 | 2.01 | 1.09–3.99 | 0.027 |
North West | 1.79 | 0.94–3.40 | 0.075 | 0.99 | 0.47–2.08 | 0.982 |
Gauteng | 1.73 | 0.95–3.16 | 0.074 | 1.31 | 0.65–2.62 | 0.447 |
Mpumalanga | 3.48 | 1.96–6.19 | < 0.001 | 1.93 | 0.97–3.82 | 0.059 |
Limpopo | 1.44 | 0.76–2.73 | 0.261 | 0.70 | 0.32–1.54 | 0.375 |
Education attendance and employment status | ||||||
Attend an educational institution | Ref | – | – | Ref | – | – |
Do not attend educational institution and unemployed | 3.48 | 2.71–4.47 | < 0.001 | 2.66 | 1.91–3.67 | < 0.001 |
Do not attend educational institution and Employed | 1.36 | 0.71–2.59 | 0.349 | 1.07 | 0.38–3.01 | 0.894 |
Orphanhood status | ||||||
Yes | Ref | – | – | Ref | – | – |
No | 0.34 | 0.27–0.43 | < 0.001 | 0.45 | 0.36–0.58 | < 0.001 |
HIV Correct knowledge and Rejection of myths | ||||||
No | Ref | – | – | Ref | – | – |
Yes | 0.03 | 0.61–1.02 | 0.070 | 0.87 | 0.66–1.15 | 0.325 |
Ever had sex | ||||||
Yes | Ref | – | – | Ref | – | – |
No | 0.34 | 0.28–0.43 | < 0.001 | 0.55 | 0.41–0.74 | < 0.001 |