Evaluating putative repellent ‘push’ and attractive ‘pull’ components for manipulating the odour orientation of host-seeking malaria vectors in the peri-domestic space

Table 4 Model outputs for experiments aiming to investigate the performance of 2-butanone and CO₂ in Suna traps (a) and to evaluate the Suna trap in presence of a human blood host (b)

Explanatory variables	Odds ratio (OR)	Confidence interval (CI)		p-value
Explanatory variables	Odds ratio (OR)	Lower CI	Higher CI	p-value
a. Exploring the association between 2-butanone or CO₂ supplement to Suna traps and the proportion of released An. arabiensis trapped
MB5-cartridge baited Suna trap supplemented with CO₂	1
MB5-cartridge baited Suna trap supplemented with 2-butanone	0.03	0.03	0.04	< 0.001
Unbaited Suna trap (no MB5, no CO₂, only suction fan)	0.01	0.00	0.01	< 0.001
Suna trap baited with CO₂ only (no MB5)	0.73	0.64	0.84	< 0.001
b. Exploring the association between the proportion of released An. arabiensis recaptured by human landing volunteers and the presence of a pull device
HLC in presence of MB5-baited Suna trap and CO₂	1
HLC in presence of MB5-baited Suna trap and 2-butanone	0.95	0.86	1.06	0.374
HLC in presence of an unbaited Suna trap unbaited fan	1.06	0.98	1.15	0.170

ISSN: 1756-3305