Table 2 Rate ratio of malaria cases and odds ratios for proportional malaria mortality in health facilities and for case fatality rates for 2008 relative to 2007, in children < 5 years of age obtained from routine surveillance data in 30 districts, analysed by vector control intervention type in Zambia
Intervention | Proportional malaria mortality in 2007 (n)(95%CI)% | Proportional malaria mortality in 2008 (n)(95%CI)% | Odds ratio (95% CI)% | P |
|---|---|---|---|---|
IRS | 63.4 (1990) [61.25-65.49] | 38.7 (995) [35.66-41.72] | 0.37[0.31-0.43] | 0.015 |
ITN | 59.1(889) [55.83-62.29] | 54.5 (486) [50.20-58.86] | 0.83[0.67-1.04] | 0.666 |
All | 62.0(2879) [60.27-63.81] | 44.1(1481) [41.54-46.56] | 0.48[0.42-0.54] | 0.082 |
Intervention | Cases per 1000 population in 2007 (n)(95%CI)% | Cases per 1000 population in 2008 (n)(95%CI)% | Rate ratio (95% CI)% | P |
IRS | 49.1(1263690) [48.77-49.33] | 48.3(939011) [48.20-48.40] | 0.97[0.97-0.98] | 0.933 |
ITN | 49.9(745447) [49.77-49.99] | 49.4(474007) [49.21-49.49] | 0.98[0.97-0.99] | 0.956 |
All | 49.4(2009137) [49.14-49.58] | 48.7(1413018) [48.39-48.91] | 0.97[0.97-0.98] | 0.944 |
Intervention | Case Fatality Rates in 2007 (n)(95%CI)% | Case Fatality Rates in 2008 (n)(95%CI)% | Odds ratio (95% CI)% | P |
IRS | 50.3 (24559) [49.71-50.97] | 25.8 (15520) [25.10-26.48] | 0.34[0.33-0.36] | 0.005 |
ITN | 20.0 (26419) [19.55-20.51] | 19.3 (14357) [18.64-19.94] | 0.96[0.91-1.00] | 0.913 |
All | 34.6(50978) [34.22-35.04] | 22.7(29877) [22.19-23.13] | 0.55[0.54-0.57] | 0.116 |