Table 2 Impact of IRS and LLIN on the prevalence of malaria in Zambia, 2006 to 2011
Total prevalence | Severe malaria | Deaths due to malaria | |
|---|---|---|---|
PRR* (95% CI) | PRR (95% CI) | PRR (95% CI) | |
IRS (per 1,000 household coverage) | |||
0 | 1 | 1 | 1 |
<500 | 1.19 (1.19–1.20) | 1.33 (1.32–1.34) | 1.12 (1.07–1.17) |
≥500 | 1.49 (1.49–1.50) | 1.49 (1.48–1.50) | 1.54 (1.46–1.62) |
LLIN (per two household residents coverage) | |||
<1 | 1 | 1 | 1 |
≥1 | 0.91 (0.90–0.91) | 0.89 (0.88–0.89) | 0.96 (0.92–1.00) |
Year | |||
2006 | 1 | 1 | 1 |
2007 | 0.89 (0.89–0.90) | 0.87 (0.86–0.87) | 0.94 (0.90–0.97) |
2008 | 0.61 (0.61–0.62) | 0.58 (0.57–0.58) | 0 .54 (0.51–0.57) |
2009 | 0.58 (0.57–0.58) | 0.63 (0.62–0.63) | 0.61 (0.59–0.65) |
2010 | 0.72 (0.71–0.72) | 0.74 (0.73–0.74) | 0.61 (0.58–0.65) |
2011 | 0.74 (0.73–0.74) | 0.60 (0.59–0.60) | 0.55 (0.52–0.58) |