Table 1.
General description of the clusters with high and low HIV prevalence identified in the 20 countries included in the study
|
Country |
National HIV prevalence |
Clusters with high HIV prevalence |
Clusters with low HIV prevalence |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of clusters | Fraction of the population (%) | HIV prevalence range (%) | Strength of the clustering* range | Number of clusters | Fraction of the population (%) | HIV prevalence range (%) | Strength of the clustering* range | ||
| Senegal |
0.75 |
2 |
14.88 |
1.94 – 4.35 |
3.33 – 6.69 |
1 |
32.80 |
0.24 |
0.24 |
| Mali |
1.11 |
1 |
11.92 |
2.55 |
2.77 |
0 |
0 |
– |
– |
| Congo D. R. |
1.39 |
1 |
2.43 |
5.00 |
3.86 |
0 |
0 |
– |
– |
| Sierra Leone |
1.49 |
1 |
8.39 |
5.03 |
4.31 |
1 |
41.00 |
0.70 |
0.34 |
| Guinea |
1.55 |
0 |
0 |
– |
– |
0 |
0 |
– |
– |
| Liberia |
1.59 |
1 |
18.07 |
3.31 |
2.74 |
2 |
17.14 |
0 – 0.08 |
0 – 0.004 |
| Burkina Faso |
1.69 |
2 |
15.91 |
3.61 – 7.73 |
2.59 – 4.99 |
0 |
0 |
– |
– |
| Ethiopia |
1.80 |
5 |
16.12 |
4.86 – 8.23 |
3.19 – 4.85 |
5 |
22.05 |
0 – 0.50 |
0 – 0.27 |
| Ghana |
1.86 |
1 |
3.88 |
5.57 |
3.25 |
2 |
10.19 |
0 |
0 |
| Burundi |
1.88 |
1 |
12.74 |
4.16 |
2.65 |
0 |
0 |
– |
– |
| Rwanda |
3.17 |
1 |
12.04 |
8.24 |
3.32 |
2 |
34.02 |
1.04 – 1.92 |
0.31 – 0.53 |
| Tanzania |
4.02 |
5 |
14.30 |
8.33 – 17.70 |
2.18 – 4.41 |
3 |
33.9 |
0 – 0.77 |
0 – 0.14 |
| Cameroon |
5.44 |
2 |
5.53 |
12.13 – 18.18 |
2.3 – 3.44 |
1 |
8.67 |
1.47 |
0.25 |
| Kenya |
6.80 |
2 |
11.09 |
21.61 – 29.73 |
4.26 – 4.28 |
3 |
26.33 |
0 – 2.6 |
0 – 0.52 |
| Mozambique |
8.66 |
4 |
23.9 |
15.05 – 22.01 |
2.07 – 2.21 |
8 |
18.42 |
0 – 2.69 |
0 – 0.31 |
| Malawi |
10.38 |
1 |
34.98 |
15.38 |
2.11 |
3 |
28.79 |
0 – 4.95 |
0 – 0.47 |
| Zambia |
14.62 |
4 |
22.61 |
22.20 – 25.21 |
1.70 – 1.74 |
7 |
13.89 |
0.99 – 8.17 |
0.07 0.55 |
| Zimbabwe |
16.49 |
3 |
14.46 |
20.76 – 30.75 |
1.29 – 1.91 |
5 |
10.78 |
1.90 – 9.94 |
0.11 – 0.59 |
| Swaziland |
19.10 |
0 |
0 |
– |
– |
0 |
0 |
– |
– |
| Lesotho | 22.22 | 1 | 40.71 | 25.49 | 1.28 | 2 | 21.20 | 14.19 – 16.37 | 0.31 – 0.71 |
*Strength of the clustering estimated as the relative risk of HIV infection within the cluster versus outside the cluster.