Table 2.
Mean and standard error (sample size) of Ae. aegypti in AGO traps by traps’ micro-habitat feature in the intervention site (IS) from December 2016 to April 2017 and in the non-intervention site, (NIS) Puerto Rico from April to July 2017.
| Variable name | Descriptive | IS | NIS |
|---|---|---|---|
| Trap location at property | Front | 1.02 ± 0.08 (257) | 15.96 ± 0.79 (271) |
| Elsewhere (alongside, back) | 0.92 ± 0.10 (172) | 21.48 ± 1.62 (158) | |
| Trap exposure to rain | No | 1.06 ± 0.22 (48) | 11.65 ± 0.99 (62) |
| Yes | 0.97 ± 0.07 (381) | 18.55 ± .87 (383) | |
| Trap exposure to sun | Yes | 0.76 ± 0.09 (157) | 14.38 ± 1.27 (128) |
| Partial/shade | 1.11 ± 0.09 (272) | 18.88 ± 0.94 (317) | |
| Trap under vegetation | No | 0.97 ± 0.08 (321) | 16.68 ± 0.81 (333) |
| Yes | 1.01 ± 0.11 (108) | 20.30 ± 1.83 (112) | |
| Ground cover under trap | Grass | 0.99 ± 0.16 (67) | 10.20 ± 0.74 (80) |
| Built | 0.98 ± 0.07 (362) | 19.21 ± 0.90 (365) | |
| Trap’s location background | Dark | 1.02 ± 0.13 (112) | 18.45 ± 1.12 (157) |
| Light | 0.97 ± 0.07 (317) | 17.12 ± 1.02 (288) | |
| Presence of adult mosquitoes alive in infusion chamber* | No | 0.98 ± 0.07 (414) | 15.99 ± 0.83 (328) |
| Yes | 1.00 ± 0.28 (15) | 18.58 ± 1.35 (83) | |
| House occupancy | Uninhabited | 1.17 ± 0.13 (128) | 15.48 ± 1.65 (67) |
| Inhabited | 0.90 ± 0.07 (301) | 18.46 ± 0.88 (362) | |
| Pet presence | No | 1.09 ± 0.08 (287) | 15.10 ± 1.00 (174) |
| Yes | 0.77 ± 0.09 (142) | 19.18 ± 1.07 (271) |
*
Following heavy rains, protruded eggs from captured female Ae. aegypti may be washed through the screen into the infusion chamber, then hatch and develop into adults that remain trapped within the infusion chamber.