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Table 4 Percent positive test results (canine seroprevalence) for states with decreasing trend (P < 0.0001) in antibodies to Anaplasma phagocytophilum

From: Trends in canine seroprevalence to Borrelia burgdorferi and Anaplasma spp. in the eastern USA, 2010–2017

State (n)a Percent positive tests Change (%) Gamma (95% CI)b
2010 2017
Midwest
 Minnesota (n = 823,260) 9.6 7.0 − 27.1 − 0.0944 (− 0.1001–− 0.0888)
 Wisconsin (n = 999,400) 11.6 6.5 − 44.0 − 0.1457 (− 0.1505–− 0.1409)
Northeast
 Connecticut (n = 741,964) 21.8 17.8 − 18.3 − 0.0545 (− 0.0587–− 0.0503)
 Maryland (n = 937,104) 1.6 1.6 0 − 0.0240 (− 0.0361–− 0.0119)
 New Jersey (n = 918,355) 9.5 7.3 − 23.2 − 0.0751 (− 0.0807–− 0.0696)
 Rhode Island (n = 144,637) 13.8 11.9 − 13.8 − 0.0622 (− 0.0732–− 0.0512)
Southeast
 Virginia (n = 1,466,464) 1.6 1.1 − 31.2 − 0.0851 (− 0.0961–− 0.0741)
  1. aTotal number of test results
  2. bGamma calculated for annual results for each state from 2010 through 2017, inclusive