Table 1.
Estimates of HIV incidence (15–44 years).
Estimate (/1000person-years) |
95% Bootstrap interval |
IRR (15–24 s women: men)a |
IRR (25–44 s women: men)b |
IRR (5 years)c |
||
---|---|---|---|---|---|---|
Low-prevalence countries | ||||||
Dominican Republic [0.8%] 2002–2007 | ||||||
Overall | 0.49 | 0.13 | 1.04 | 0.98 | 0.94 | 0.44 |
Men | 0.50 | 0.15 | 1.05 | 0.38 | ||
Women | 0.48 | 0.11 | 1.02 | 0.52 | ||
Mali [1.2%] 2001–2006 | ||||||
Overall | 1.14 | 0.23 | 2.65 | 0.85 | 0.23 | 0.59 |
Men | 1.47 | 0.32 | 2.91 | 0.86 | ||
Women | 0.78 | 0.13 | 2.37 | 0.36 | ||
Niger [0.7%] 2002–2006 | ||||||
Overall | 0.58 | 0.01 | 2.14 | 2.74 | 0.41 | 0.47 |
Men | 0.69 | 0.02 | 2.49 | 0.62 | ||
Women | 0.47 | 0.00 | 1.79 | 0.35 | ||
High-prevalence countries | ||||||
Tanzania [7.0%] 2004–2008 | ||||||
Overall | 3.37 | 1.52 | 6.42 | 9.33 | 0.50 | 0.44 |
Men | 2.36 | 0.75 | 5.22 | 0.34 | ||
Women | 4.42 | 2.32 | 7.65 | 0.53 | ||
Zambia [15.6%] 2002–2007 | ||||||
Overall | 11.22 | 6.60 | 16.52 | 1.38 | 0.52 | 0.64 |
Men | 11.34 | 6.66 | 16.26 | 0.80 | ||
Women | 11.07 | 6.54 | 16.81 | 0.53 |
Estimates are per 1000 person-years at risk and weighted by the number susceptible in the population. Values in square brackets show the HIV prevalence among adults of 15–49 years in the most recent survey. IRR, incidence rate ratio.
IRR (15–24 s women: men) is the ratio of incidence among 15–24-year-old women in the intersurvey period, compared with men of the same age.
IRR (25–44 s women: men) is the ratio of incidence among 25–44-year-old women in the intersurvey period, compared with men of the same age.
IRR (5 years) is the ratio of incidence among 15–44-year-olds in the intersurvey period, compared with incidence in the 5 years before the first year (assuming constant prevalence). Values underlined indicate that the corresponding 95% bootstrap interval did not include 1.0.