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Table 3 Results obtained for Anopheles arabiensis (n = 42 nights) in the experimental huts in Moshi

From: Laboratory and experimental hut evaluation of a long-lasting insecticide treated blanket for protection against mosquitoes

Hut treatment Unwashed control Washed control Unwashed LLIB Washed LLIB Unwashed ITB Washed ITB Olyset net
Initial dose of permethrin 0 mg/m2 0 mg/m2 2000 mg/m2 2000 mg/m2 500 mg/m2 500 mg/m2 1000 mg/m2
Number of washes 0 5 0 5 0 5 0
% volunteer body cover (95% CI) 81 (77–85) 83 (80–87) 79 (74–83) 78 (73–82) 79 (72–85) 79 (72–85) 100
Total females caught 192 205 224 237 240 197 288
Females caught/night 5 5 5 6 6 5 7
Total females in verandah and exit traps 155 170 194 210 203 169 258
Exophily (%) 81ad 83d 87abd 89abc 85acd 86acd 90c
95% Confidence limits 73-86 70-91 80-91 82-93 79-89 79-91 83-94
Total females blood fed 67 85 56 50 48 54 51
Blood fed (%) 35ab 41a 25bc 21cd 20cd 27bc 18d
95% Confidence limits 26-45 33-50 19-32 17-26 14-28 16-42 13-24
Blood feeding inhibition (%) - - 29 49 43 34 49
Total females dead 4 3 59 53 70 53 90
Overall mortality (%) 2a 1a 26bc 22b 29bc 27bc 31c
95% Confidence limits 1-5 0-5 19-36 15-31 21-39 21-34 24-39
Corrected for control (%) - 0 24 21 27 25 29
Unfed mortality 3 (1–8) 3 (1–8) 30 (20–41) 23 (16–32) 31 (21–43) 30 (23–38) 32 (24–43)
Blood fed mortality 0 0 16 (7–32) 20 (9–39) 21 (11–36) 19 (12–28) 25 (14–42)
  1. Numbers in the same row sharing a letter superscript do not differ significantly (P > 0.05).