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Table 5 Median percentage mortality (and inter-quartile ranges (IQR)), and the sums of mosquitoes of different taxa killed per night in experimental huts fitted with different IRS and LLIN treatments during the second spray round (wet season tests)

From: Comparative field evaluation of combinations of long-lasting insecticide treated nets and indoor residual spraying, relative to either method alone, for malaria prevention in an area where the main vector is Anopheles arabiensis

  Mortality of Anopheles arabiensis Mortality of Culex species Mortality of Mansonia species
IRS/LLIN combinations Median (IQR) Total dead(n)^ Median (IQR) Total dead$ Median (IQR) Total dead$
Untreated nets only** 10.4 (04.2 - 18.1) 968 (90) 3.3 (0.0 - 10.0) 137 0.0 (0.0 - 27.1) 85
Olyset® only 14.8 (09.3 - 23.9) 1742 (90) 2.9 (0.0 - 10.0) 128 0.0 (0.0 - 42.5) 86
PermaNet 2.0® only 19.7 (11.2 - 30.1) 1644 (90) 3.8 (0.0 - 13.7) 177 26.1 (0.0 - 50.0) 147
Icon Life® only 16.7 (07.2 - 26.4) 2121 (90) 2.3 (0.0 - 11.5) 187 20.0 (0.0 - 46.6) 198
Pirimiphos methyl and untreated nets 23.4 (12.9 - 36.7) 1599 (60) 5.7 (2.5 - 31.8) 272 21.1 (03.9 - 50.0) 119
Pirimiphos methyl and Olyset® 20.3 (12.4 - 31.2) 2171 (60) 7.1 (3.6 - 21.0) 291 31.7 (12.7 - 56.2) 149
Pirimiphos methyl and PermaNet 2.0® 25.0 (14.6 - 36.9) 2146 (60) 9.7 (4.1 - 28.6) 284 50.0 (29.4 - 97.7) 262
Pirimiphos methyl and Icon Life® 21.8 (11.9 - 34.2) 2305 (60) 9.6 (3.8 - 33.6) 316 45.0 (28.6 - 79.5) 282
DDT and untreated nets 17.1 (08.0 - 28.3) 943 (60) 3.6 (0.0 - 14.0) 109 8.0 (0.0 - 38.3) 68
DDT and Olyset® 19.2 (11.6 - 28.1) 1201 (60) 4.3 (0.0 - 11.1) 124 22.5 (0.0 - 50.0) 65
DDT and PermaNet 2.0® 19.4 (12.6 - 34.1) 1171 (60) 4.8 (0.0 - 24.3) 150 33.3 (0.0 - 66.7) 97
DDT and Icon Life® 14.7 (09.7 - 24.1) 1255 (60) 4.6 (0.0 - 10.6) 151 1.5 (0.0 - 30.6) 60
Lambda cyhalothrin and untreated nets 17.8 (10.4 - 28.6) 1431 (60) 9.7 (4.9 - 22.5) 197 21.1 (9.2 - 45.7) 138
Lambda cyhalothrin and Olyset® 14.2 (09.0 - 27.7) 1578 (60) 5.5 (0.0 - 15.4) 157 25.0 (0.0 - 50.0) 136
Lambda cyhalothrin and PermaNet 2.0® 19.0 (10.8 - 33.4) 1768 (60) 7.7 (2.6 - 23.6) 189 50.0 (8.5 - 80.0) 264
Lambda cyhalothrin and Icon Life® 18.4 (09.3 - 26.2) 1893 (60) 8.0 (1.5 - 16.9) 155 33.3 (16.2 - 50.0) 210
  1. ^ The term ‘n’ refers to total number of replicates.
  2. $ The number of replicates (n) was the same as for Anopheles arabiensis.
  3. **Controls refer to unsprayed huts in which volunteer used untreated nets.