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Table 3 Median numbers (and inter-quartile ranges (IQR)), and the sum of mosquitoes of different taxa caught per night in experimental huts fitted with different IRS and LLIN treatments during the 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

  Anopheles arabiensis Culex species Mansonia species
IRS/LLIN combinations Median (IQR) Sum (n)^ Median (IQR) Sum$ Median (IQR) Sum$
Untreated nets alone** 64.0 (36.5 - 95.0) 7181 (90) 22.0 (11.0 - 39.5) 2461 5.0 (3.0 - 8.0) 537
Olyset® alone 84.0 (43.0 - 145.8) 9789 (90) 23.0 (10.0 - 39.3) 2498 3.0 (1.0 - 5.3) 380
PermaNet 2.0® alone 61.0 (41.5 - 118.3) 8240 (90) 23.0 (10.0 - 41.5) 2544 3.5 (1.0 - 6.3) 412
Icon Life® alone 105.0 (57.0 - 164.3) 11279 (90) 22.5 (13.8 - 43.3) 2668 6.0 (3.0 - 11.0) 703
Pirimiphos methyl only 85.0 (52.3 - 141.8) 6751 (60) 33.5 (14.5 - 65.8) 3102 9.0 (3.3 - 13.0) 652
Pirimiphos methyl and Olyset® 136.0 (74.8 - 208.3) 9988 (60) 33.5 (16.5 - 74.0) 3384 6.0 (3.0 - 9.8) 437
Pirimiphos methyl and PermaNet 2.0® 94.5 (59.0 - 191.3) 7978 (60) 30.0 (17.0 - 62.3) 3032 7.0 (3.3 - 11.8) 518
Pirimiphos methyl and Icon Life® 144.5 (72.5 - 197.5) 9621 (60) 37.5 (16.3 - 59.5) 3023 9.0 (5.0 - 17.0) 722
DDT only 67.0 (38.3 - 107.8) 4983 (60) 23.0 (12.3 - 46.3) 1828 4.0 (2.0 - 8.0) 365
DDT and Olyset® 76.0 (51.3 - 129.5) 6053 (60) 25.5 (10.3 - 40.8) 1894 3.0 (1.0 - 5.8) 256
DDT and PermaNet 2.0® 72.0 (41.3 - 135.0) 5528 (60) 27.0 (10.3 - 40.5) 1909 4.0 (2.0 - 6.8) 271
DDT and Icon Life® 82.0 (48.5 - 148.5) 6176 (60) 29.0 (15.0 - 43.8) 1925 4.0 (2.3 - 9.0) 438
Lambda cyhalothrin alone 100.5 (51.3 - 178.5) 7535 (60) 20.5 (10.3 - 38.0) 1950 7.5 (4.0 - 13.0) 620
Lambda cyhalothrin and Olyset® 115.5 (65.5 - 207.0) 8947 (60) 23.0 (9.8 - 34.0) 1916 5.0 (2.0 - 9.8) 438
Lambda cyhalothrin and PermaNet 2.0® 100.5 (58.3 - 173.8) 7622 (60) 22.0 (9.5 - 37.8) 2018 6.0 (3.0 - 12.0) 548
Lambda cyhalothrin and Icon Life® 120.0 (71.8 - 243.5) 9784 (60) 23.5 (9.0 - 34.8) 1981 8.0 (5.0 - 15.0) 706
  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 volunteers used untreated nets.