Table 2 Mean abundance of malaria vectors caught per trap (per night) using different trapping methods during the study period (95% confidence intervals are given in brackets): CDC = CDC light trap used indoors, RB = an outdoor resting box, RC = a resting catch inside a house, RCA = a resting catch inside a cattle shed

Households without livestock Households with livestock
An gambiae s.l. CDC RB RC CDC RB RC RCA
2007 0.136 (0.12-0.82) 0.01 (0–0.013) 0.05 (0.01-0.19) 0.55 (0.02-0.18) 0.02 (0.01-0.06) 0.13 (0.03-0.49) 3.94 (0.50-31.37)
2008 5.05 (2.72-9.37) 0.03(0.01-0.09) 0.04 (0.03-0.64) 8.04 (3.58-18.06) 0.07 (0.020.19) 0.15 (0.03-0.64) 1.04 (0.18-6.00)
2009 33.25 (11.34-95.77) 0.06 (0.04-0.18) 0.30 (0.06-1.36) 18.56 (8.26-41.72) 0.17 (0.08-0.17) 0.35 (0.14-0.90) 1.44 (0.23-8.99)
All years 2.02 (0.79-5.13) 0.03 (0.01-0.10) 0.13 (0.05-0.37) 2.18 (1.20-3.95) 0.06 (0.04-0.11) 0.07 (0.02-0.24) 1.30 (0.36-4.78)
An. funestus CDC RB RC CDC RB RC RCA
2007 1.00 (0.41-2.43) 0.03 (0.01-0.09) 0.04 (0.01-0.21) 0.06 (0.02-0.17) 0.04 (0.02-0.08) 0.81 (0.01-0.21) **
2008 0.69 (0.24-1.96) 0.002 (0–0.01) 0.08 (0.02-0.37) 0.68 (0.37-1.27) 0.01 (0.001-0.03) 0.03 (0.01-0.08) **
2009 1.45 (0.51-4.17) 0.04 (0.02-0.09) 0.06 (0.02-0.20) 1.46 (0.79-2.71) 0.03 (0.01-0.08) 0.15 (0.05-0.47) **
All years 0.87 (0.54-1.40) 0.02 (0.01-0.05) 0.07 (0.02-0.24) 0.75 (0.45-1.22) 0.01 (0.004-0.02) 0.06 (0.03-0.14) 0.32 (0.01-1.23)
1. **indicates where data were insufficient for estimation.
2. Estimates are given for each study year, and for the total over all years (where year was fit as a random effect).