Table 2. The proportion of consultations, HIV incidence, and population attributable fraction for HIV of particular characteristics.
| MSM’s characteristics in the last 12 months | Proportion of those seen at initial consultation with characteristic (%) | HIV incidence rate per 100 person-years[95% CI] | Population attributable fraction (PAF) for HIV (%) [95% CI] |
|---|---|---|---|
| Inconsistent condom use during anal sex | 52% | 2.1 [1.6, 2.7] | 44.7 [17.5, 62.9] |
| Injecting drug use | 1.7% | 8.5 [3.4, 17.5] | 7.9 [0.6, 14.6] |
| PEP use | 37% | 2.3 [1.7, 3.1] | 0.8 [0, 18.6] |
| STI diagnosisa | 34% | 2.2 [1.6, 3.0] | 20.4 [0, 36.6] |
| Rectal Infectionsb | 26% | 2.8 [2.0, 3.9] | 23.9 [5.8, 38.6] |
| Non-rectal infectionsc | 20% | 2.2 [1.5, 3.3] | 6.3 [0, 19.9] |
| Gonorrhoea at any sited | 20% | 2.4 [1.6, 3.5] | 5.6 [0, 18.7] |
| Chlamydia at any sitee | 25% | 2.3 [1.6, 3.3] | 14.3 [0, 28.4] |
| Inconsistent condom use AND rectal gonorrhoea/chlamydia infections | 15% | 4.1 [2.8, 5.8] | 24.1 [9.5, 36.3] |
| Any 1 characteristic | 77% | 1.7 [1.3, 2.1] | 62.6 [24.1, 81.5] |
| Any 2 characteristics | 44% | 2.1 [1.6, 2.8] | 33.7 [12.0, 50.0] |
| Any 3 characteristics | 10% | 3.4 [1.9, 5.5] | 13.6 [2.1, 23.7] |
| Any 4 characteristics | 0.4% | 6.2 [0.2, 34.4] | 1.0 [0, 3.7] |
a Gonorrhoea at any sites, chlamydia at any sites and syphilis
b Rectal gonorrhoea and/or chlamydia
c Pharyngeal and/or urethral gonorhorea, and/or urethral chlamydia
d Pharyngeal, urethral and/or rectal gonorrhoea
e Urethral and/or rectal chlamydia.