Controlled release spatial repellent devices (CRDs) as novel tools against malaria transmission: a semi-field study in Macha, Zambia

Table 4 Global analysis of Experiments 1–3: Impact of CRDs on indoor and outdoor catch, foraging and mortality of mosquitoes

	Outcomes	Number of mosquitoes (% of those captured)		Odds ratio	95% CI	p
	Outcomes	CRD present (captured n = 4296)	CRD absent (captured n = 4225)	Odds ratio	95% CI	p
Indoor	Total catch^a	1329	2193	0.36	0.33, 0.40	0.001
Indoor	Foraging^b	407	313	1.31	1.12, 1.55	0.001
Outdoor	Total catch^a	2967	2009	1.01	0.89, 1.13	0.912
Outdoor	Foraging^b	618	570	1.05	0.93, 1.20	0.364
Indoors and Outdoors	Dead	549	376	1.47	1.27, 1.69	0.001

Odds ratios were generated from generalized linear models (GLMs) using a Poisson distribution with logit link function comparing of number of mosquitoes collected with or without the CRD, accounting for experiment type, environmental variables and the timing of each experiment. For all experiments, CRDs were alternated in a cross-over design and impacts on released female An. gambiae s.s. mosquitoes studied over 10 experimental nights. Number captured refers to total numbers retrieved the following morning from all study nights
Italic values indicate significance of p value (p < 0.05)
^aTotal catch represents sum of foraging mosquitoes caught in light traps, and those found alive or dead the next morning
^bForaging represents total caught in light traps

ISSN: 1475-2875