The need for larval source management accompanying urban development projects in malaria endemic areas: a case study on Bioko Island

Table 3 Presence of Anopheles spp. late-stage larvae in potential larval habitats for control and intervention sites

Characteristic	Untreated		Treated		Comparison
Type	obs	% pos	obs	% pos	p	OR	95% CI
Gutters/Canals	283	37.8	2265	15.3	< 0.001	0.30	0.23, 0.39
Wheel prints	215	52.1	715	13.8	< 0.001	0.15	0.11, 0.21
Puddles	191	47.1	279	11.5	< 0.001	0.15	0.09, 0.23
Water container	55	27.3	87	5.7	0.001	0.16	0.06, 0.50
Other	0		107
Size
< 10m²	353	42.5	633	11.4	< 0.001	0.17	0.13, 0.24
10 to 100m²	297	45.1	2,440	13.9	< 0.001	0.20	0.15, 0.25
> 100m²	61	60.7	330	16.4	< 0.001	0.13	0.07, 0.23
Undetermined	33		50
Total	744	43.6	3453	14.1	< 0.001	0.21	0.18, 0.25

The number of observations and proportion of potential mosquito larval habitats containing Anopheles spp. larvae are presented by habitat type and size for control and intervention sites with statistical comparison using logistic regression (significant values appear in italics). A small number of habitats that were not classified into larger groups or the size was not able to be determined were not included in the above statistical comparison

ISSN: 1475-2875