Temporal and micro-spatial heterogeneity in the distribution of Anopheles vectors of malaria along the Kenyan coast

Table 4 Likelihood ratio tests of household clustering and overdispersion in household densities of Anopheles mosquitoes

Parameter	DF^a	Species	Estimate^b	LRS^b,c	P- value^d
Household clustering, $σ_{H}^{2}$	1	A. gambiae	0.40	51	< 0.001
Household clustering, $σ_{H}^{2}$	1	A. funestus	0.22	18	< 0.001
Overdispersion, $σ_{O}^{2}$	1	A. gambiae	72	6300	< 0.001
Overdispersion, $σ_{O}^{2}$	1	A. funestus	380	8100	< 0.001

^aDegrees of freedom.
^bRounded to 2 significant figures.
^cLikelihood ratio statistic.
^dCalculated assuming that, under the null hypothesis (of the parameter in question not statistically significantly improving the log-likelihood of the fitted model), the LRS is χ² distributed with the indicated degrees of freedom [71].

ISSN: 1756-3305