Comparison of two adult mosquito sampling methods with human landing catches in south-central Ethiopia

Malaria Journal

Table 2 Correlation and regression analysis of log-transformed indoor (IN) and outdoor (OUT) human landing catches (HLC) with either light trap (LTC) or yeast-generated CO₂-baited light trap catches (CB-LTC) of Anopheles species in Edo Kontola, Ethiopia 2014

Species	Alternative vs. HLC	Venue	Correlation coefficient			Regression slope
Species	Alternative vs. HLC	Venue	n	r	p	b	95% CI	t	p
An. arabiensis	LTC	IN	39	0.308	0.056	0.073	−0.25 to 0.40	0.451	0.654
	LTC	OUT	39	0.378	<0.05	−0.880	−1.20 to 0.56	−5.565	<0.001
	CB-LTC	IN	39	0.493	0.001	−0.063	−0.33 to 0.20	−0.471	0.640
	CB-LTC	OUT	39	0.288	0.076	−0.691	−0.91 to 0.47	−6.393	<0.001
An. pharoensis	LTC	IN	39	−0.019	0.906	0.519	0.14 to 0.89	2.792	<0.05
	LTC	OUT	39	0.243	0.136	−0.352	−0.73 to 0.03	−1.839	0.074
	CB-LTC	IN	39	0.235	0.150	0.078	−0.27 to 0.43	0.443	0.660
	CB-LTC	OUT	39	0.133	0.419	−0.622	−1.05 to 0.18	−2.897	<0.05
An. ziemanni	LTC	IN	39	0.427	<0.05	0.081	−0.20 to 0.36	0.581	0.565
	LTC	OUT	39	0.775	<0.001	0.034	−0.12 to 0.19	0.442	0.661
	CB-LTC	IN	39	0.627	<0.001	0.005	−0.21 to 0.22	0.048	0.962
		OUT	39	0.795	<0.001	0.109	−0.03 to 0.25	1.544	0.131
An. funestus s.l.	LTC	IN	39	−0.164	0.317	0.948	0.71 to 1.18	8.084	<0.001
	LTC	OUT	39	0.316	0.050	0.522	0.28 to 0.75	4.488	<0.001
	CB-LTC	IN	39	0.024	0.885	0.846	0.63 to 1.05	8.220	<0.001
	CB-LTC	OUT	39	0.463	<0.05	0.423	0.21 to 0.63	4.051	<0.001

The correlation coefficients show the relationship between log(LTC + 1) and log(HLC + 1), log(CB-LTC + 1) and log(HLC + 1). The regression slopes are from regressing relative sampling efficiencies (log(LTC + 1) – log (HLC + 1)) on average abundance ([log (LTC + 1) + log(HLC + 1)]/2) and also (log (CB-LTC + 1) − log (HLC + 1)) on average abundance ([log(CB-LTC + 1) + log(HLC + 1)]/2)
n sample size, r Pearson’s correlation coefficient, b regression slope, CI confidence interval, t t test value, p probability value

ISSN: 1475-2875