Model for predicting human WNV activity.

Model variables and statistical summary for prediction of human WNV activity, 2005-2011. "BP" = Bird Principal component for a particular year.

parameter	estimate (log odds)	standardized estimate (c/σ)	std. error	p>Χ2
intercept	-0.547		1.4253	0.7012
expected mean minimum temperature in January	-0.00224	-0.6185	0.000107	<0.0001
mean minimum temperature in January	0.00185	0.5157	0.00008	<0.0001
(log total population)2	0.0284	0.4673	0.00113	<0.0001
first principal component of bird data (BP1)	0.2714	0.3615	0.0164	<0.0001
WNV present in previous year? (Yes=1)	1.0758	0.2606	0.0503	<0.0001
BP3	-0.244	-0.2365	0.0166	<0.0001
BP2	0.1981	0.1810	0.0208	<0.0001
% Black or African American	0.0144	0.1372	0.0021	<0.0001
BP20	0.4544	0.1130	0.0512	<0.0001
BP12	0.0751	0.1043	0.0379	0.0475
BP18	-0.3397	-0.0886	0.0518	<0.0001
BP5	-0.2767	-0.0807	0.0242	<0.0001
BP7	-0.1660	-0.0745	0.0292	<0.0001
% employed (Census 2010)	2.1885	0.0686	0.4636	<0.0001
(proportion developed)2	1.278	0.0667	0.5282	0.0155
log (total income and benefits)	-0.6033	-0.0623	0.1488	<0.0001
BP6	0.1508	0.0556	0.0208	<0.0001
BP16	-0.1021	-0.0500	0.0453	0.0240
proportion of county land developed	-0.7137	-0.0454	0.2931	0.0149
BP13	-0.2086	-0.0366	0.0360	<0.0001
BP10	-0.1220	-0.0342	0.0314	0.0001
BP15	-0.0794	-0.00937	0.0430	0.0649
BP19	-0.1294	-0.00609	0.0525	0.0137
BP21	0.2658	0.0045	0.0603	<0.0001
BP9	-0.1046	-0.0042	0.0348	0.0027