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Table 1 Cross-tabulation of corvid sighting and corvid submission results

From: A bird's eye view: using geographic analysis to evaluate the representativeness of corvid indicators for West Nile virus surveillance

  

Number of Local Health Areas submitting corvids for West Nile virus testing

  

Significantly fewer than expected

No significant difference from expected

Significantly more than expected

Number of Local Health Areas with public reports of dead corvid sightings

Significantly fewer than expected

5

6

1

 

No significant difference from expected

4

32

14

 

Significantly more than expected

2

8

11

  1. Statistical significance was determined using the exact Poisson distribution and a significance level of 0.05.