Table 2.

EEEV transmission risk index (RI) values summarized state-wide and by region for documented horse cases during 2005-2010 (Vander Kelen et al. 2012a), documented horse cases during 2004 and 2011, and randomly distributed points recorded at the location and within a 100 m error radius.

			Value at location					Maximum value within 100 m of location
Scale	Sample	n	min	mean	s	med	max	min	mean	s	med	max
State-wide	2005-2010 cases	438	0.00	0.54	0.36	0.48	1.00	0.00	0.72	0.31	0.84	1.00
	2004,2011 cases	47	0.00	0.56	0.35	0.54	1.00	0.00	0.75	0.30	0.89	1.00
	Random locations	4700	0.00	0.31	0.29	0.24	1.00	0.00	0.44	0.31	0.48	1.00
Panhandle	2005-2010 cases	87	0.03	0.55	0.34	0.48	1.00	0.03	0.78	0.31	0.96	1.00
	2004,2011 cases	11	0.07	0.44	0.36	0.40	1.00	0.27	0.75	0.29	0.88	1.00
	Random locations	934	0.00	0.36	0.30	0.38	1.00	0.00	0.49	0.31	0.48	1.00
North	2005-2010 cases	212	0.00	0.56	0.35	0.48	1.00	0.02	0.72	0.29	0.81	1.00
	2004,2011 cases	24	0.08	0.61	0.34	0.70	1.00	0.10	0.78	0.25	0.86	1.00
	Random locations	2275	0.00	0.32	0.27	0.30	1.00	0.00	0.45	0.29	0.48	1.00
Central	2005-2010 cases	122	0.02	0.53	0.38	0.64	1.00	0.02	0.71	0.32	0.83	1.00
	2004,2011 cases	9	0.25	0.73	0.29	0.90	1.00	0.26	0.87	0.24	0.96	1.00
	Random locations	1315	0.00	0.32	0.32	0.14	1.00	0.00	0.43	0.34	0.41	1.00
South	2005-2010 cases	16	0.00	0.49	0.36	0.64	1.00	0.00	0.54	0.39	0.71	1.00
	2004,2011 cases	3	0.00	0.13	0.23	0.00	0.39	0.00	0.14	0.25	0.00	0.43
	Random locations	176	0.00	0.11	0.20	0.04	0.99	0.00	0.18	0.26	0.04	1.00