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Table 1 Average proportion of counties within clusters which had higher than expected human WNV rates.

From: Spatio-temporal cluster analysis of county-based human West Nile virus incidence in the continental United States

Year 1% 2% 5% 7% 10% 20% 30%
2002 0.60 0.56 0.49 0.49 0.42 0.42 0.41
2003 0.66 0.64 0.60 0.62 0.62 0.60 0.65
2004 0.51 0.50 0.43 0.40 0.39 0.26 0.24
2005 0.51 0.48 0.46 0.45 0.36 0.40 0.36
2006 0.63 0.57 0.54 0.52 0.46 0.41 0.57
2007 0.53 0.55 0.49 0.48 0.47 0.45 0.42
2008 0.43 0.47 0.33 0.35 0.29 0.27 0.34
All years 0.72 0.72 0.64 0.63 0.64 0.60 0.60
Overall average 0.58 0.56 0.50 0.49 0.46 0.43 0.45
  1. For all clusters in a given year/population threshold combination, the proportion of counties within that cluster which had a higher than expected human WNV incidence rate was calculated. These proportions were then averaged for each year/population threshold and compiled in this table.