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Table 2 Effect of 0.03 % transfluthrin coils and blank coils on the number of host-seeking mosquitoes measured by human landing collection

From: A crossover study to evaluate the diversion of malaria vectors in a community with incomplete coverage of spatial repellents in the Kilombero Valley, Tanzania

  Na nb GMc 95 % CI- GMd IRRe 95 % CI- IRRf P-value
Anopheles arabiensis
 Blank coils 6 (14) 1,056 2.89 2.53–3.3 1
 0.03 % Transfluthrin coils 4 (4) 57 1.41 1.10–1.82 0.22 0.052–0.91 0.037
Anopheles funestus
 Blank coils 6 (14) 322 1.85 1.64–2.08 1
 0.03 % Transfluthrin coils 4 (4) 47 1.26 1.12–1.42 0.69 0.21–2.27 0.54
Culex spp.
 Blank coils 6 (14) 2243 5.16 4.62–5.76 1
 0.03 % Transfluthrin coils 4 (4) 617 5.22 4.37–6.24 1.27 0.54–2.97 0.59
  1. aN, number of nights (number of houses) to each coverage scenario (number of weeks)
  2. bn, total number of collected mosquitoes landing on human legs per treatment
  3. cGM, geometric mean number of mosquitoes
  4. d95 % CI-GMd, 95 % confidence interval of GM
  5. eIRR, Incidence Rate Ratio
  6. f95 %-IRR, 95 % confidence interval of incidence rate ratio
  7. Abbreviations: GM, geometric mean number of mosquitoes; IRR, incidence rate ratio