Table 3.
Variables | Voluntary medical male circumcision (VMMC) | Traditional male circumcision (TMC) | ||||
---|---|---|---|---|---|---|
RRR | 95 % CI | p-value | RRR | 95 % CI | p-value | |
Age group (in years) | ||||||
15–19 | 1 | 1 | ||||
20–24 | 1.20 | 0.76–1.90 | 0.421 | 2.24 | 1.54–3.27 | <0.001 |
25–49 | 1.51 | 0.95–2.40 | 0.085 | 3.54 | 2.50–5.00 | <0.001 |
50+ | 1.34 | 0.82–2.20 | 0.243 | 5.15 | 3.56–7.46 | <0.001 |
Race | ||||||
Other | 1 | 1 | ||||
Black Africans | 2.23 | 1.41–3.52 | 0.001 | 25.44 | 19.41–33.35 | <0.001 |
Locality type | ||||||
Urban formal | 1 | 1 | ||||
Urban informal | 0.74 | 0.48–1.14 | 0.169 | 1.68 | 1.34–2.11 | <0.001 |
Rural informal | 0.85 | 0.60–1.21 | 0.377 | 1.27 | 1.01–1.59 | 0.042 |
Rural formal | 0.77 | 0.32–1.82 | 0.551 | 1.10 | 0.85–1.42 | 0.458 |
Province | ||||||
Western Cape | 1 | 1 | ||||
Eastern Cape | 2.03 | 1.01–4.10 | 0.048 | 2.57 | 1.87–3.54 | <0.001 |
Northern Cape | 0.38 | 0.22–0.65 | <0.001 | 0.10 | 0.07–0.16 | <0.001 |
Free State | 0.73 | 0.37–1.43 | 0.359 | 0.18 | 0.13–0.25 | <0.001 |
KwaZulu-Natal | 0.41 | 0.26–0.67 | <0.001 | 0.05 | 0.03–0.07 | <0.001 |
North West | 0.58 | 0.33–1.01 | 0.054 | 0.14 | 0.10–0.20 | <0.001 |
Gauteng | 1.22 | 0.83–1.77 | 0.308 | 0.26 | 0.19–0.36 | <0.001 |
Mpumalanga | 0.62 | 0.34–1.12 | 0.111 | 0.28 | 0.20–0.39 | <0.001 |
Limpopo | 2.85 | 1.49–5.42 | 0.001 | 0.71 | 0.50–1.02 | 0.061 |
Perceived risk of HIV infection | ||||||
No | 1 | 1 | ||||
Yes | 1.35 | 0.99–1.85 | 0.059 | 1.02 | 0.85–1.22 | 0.861 |
No of sex partners in last 12 months | ||||||
One partner | 1 | 1 | ||||
Two partners | 1.02 | 0.71–1.48 | 0.896 | 0.79 | 0.61–1.03 | 0.088 |
More than 2 partners | 1.67 | 1.14–2.46 | 0.009 | 1.21 | 0.91–1.62 | 0.188 |
Alcohol use risk scorea | ||||||
Abstainers | 1 | 1 | ||||
Low risk (1–7) | 1.28 | 0.94–1.76 | 0.121 | 0.72 | 0.60–0.86 | <0.001 |
Risky/hazardous level (8–15) | 1.02 | 0.74–1.41 | 0.891 | 0.81 | 0.65–1.01 | 0.064 |
High risk/harmful (16–19) | 1.29 | 0.68–2.42 | 0.434 | 0.94 | 0.62–1.43 | 0.768 |
High risk (20+) | 1.19 | 0.62–2.29 | 0.606 | 0.70 | 0.43–1.12 | 0.132 |
RRR relative risk ratio equivalent to odds ratio, CI confidence intervals
aRisk score based on a questionnaire for Alcohol Use Disorder Identification Test (AUDIT)