Table 3.

Influence of trapping method on the proportion of Anopheles arabiensis caught in the field and An. gambiae s.s. recaptured in the semi-field system that were fully or partly blood fed as determined by binary logistic regression^*

Experiment	Trap type	Proportion fed (%)	OR (95% CI)	P
An. arabiensis in the field
	Ifakara C	1.4 (10/703)	0.27 (0.12–0.60)	0.001
	Ifakara B	5.1 (17/336)	1.00†	NA
An. gambiae in the semi-field
	Ifakara C	0.0 (0/190)	NE	NE
	Ifakara B	3.5 (6/171)	NE	NE

^*OR = odds ratio; CI = confidence interval; NA = not applicable because this is the reference method; NE = not estimable.

^†Reference value.