Table 5. Parameters for the Gompertz and Logistic models used to describe the predicted age structures of Aedes aegypti collected from Tri Nguyen village.

		Gompertz		Logistic			Likelihood Ratio test
Season	Method	a	b	a	b	s	p-value
Wet/cool	BPA	0.106	0.218	0.050	0.374	0.123	0.032
Dry/cool	BPA	0.021	0.174	*convergence not achieved
Dry/hot	BPA	0.068	0.190	0.049	0.239	0.058	0.016
Wet/cool	BG	0.306	0.097	0.000	1.829	0.794	0.015
Dry/cool	BG	0.001	0.219	*convergence not achieved
Dry/hot	BG	0.025	0.199	0.013	0.252	0.053	0.032

The likelihood ratio test indicates whether the more complex Logistic model significantly improved the fit. P-values less than 0.01 indicate the more complex model was more appropriate. Convergence not achieved indicates the nls algorithm failed to find an optimal solution.