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Table 1 Percent positive test results (canine seroprevalence) for states with decreasing trend (P < 0.0001) in antibodies to Borrelia burgdorferi

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

 Wisconsin (n = 999,422)

12.8

8.6

− 32.8

− 0.0811 (− 0.0854–− 0.0768)

Northeast

 Connecticut (n = 742,204)

19.9

16.3

− 18.1

− 0.0223 (− 0.0264–− 0.0182)

 Delaware (n = 166,596)

10.7

5.5

− 48.6

− 0.1637 (− 0.1757–− 0.1517)

 Massachusetts (n = 1,485,595)

18.6

15.5

− 16.7

− 0.0474 (− 0.0502–− 0.0446)

 Maryland (n = 977,185)

10.8

6.9

− 36.1

− 0.1011 (− 0.1059–− 0.0963)

 New Hampshire (n = 490,650)

16.7

13.4

− 19.7

− 0.0438 (− 0.0491–− 0.0385)

 New Jersey (n = 927,468)

14.1

10.4

− 26.2

− 0.0754 (− 0.0797–− 0.0711)

 Rhode Island (n = 150,452)

16.8

12.8

− 23.8

− 0.0574 (− 0.0667–− 0.0482)

Southeast

 Virginia (n = 1,508,270)

10.8

7.8

− 27.8

− 0.0522 (− 0.0560–− 0.0485)

  1. aTotal number of test results
  2. bGamma calculated for annual results for each state from 2010 through 2017, inclusive