Table 3. Population size estimates using average-difference model.

Variable	Samples calculation (1/2 wk)
1) Mean no. of wild female Ae. aegypti per BGS trap, before release (95% CI) (-1/-2 wk)	4.5/4.5(1.3–7.5/ 2.7–6.3)
2) Mean no. of female Ae. aegypti per BGS trap after release of Wolbachia- infected mosquitoes (95% CI)	6.7/8.1(4.3–9.9/ 5.5–11.4)
3) Increase (mean ratio) in BGS collections of female due to released mosquitoes	2.2/3.6
4) Ratio of wild to released mosquitoes in BGS collections	2.0/1.3
5) Estimated no. of wild mosquitoes per trap = no. of released mosquitoes/trap x ratio of wild to released mosquitoes*	70/ 55
Estimated no. of wild mosquitoes per premise = no. of released mosquitoes/trap x ratio of wild to released mosquitoes x no. of traps / no. of premises	2.4/ 1.9
Estimated no. of wild mosquitoes per area (m2) = no. of released mosquitoes/trap x ratio of wild to released mosquitoes x no. of traps / total area	0.024/ 0.019

* The numbers of released mosquitoes/trap was estimated based on a mean of survival mosquitoes in field considering a daily survival of 0.8 (see more details on a S1 Table).