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Table 3 County trends (P < 0.01) by state in seroprevalence of antibodies to Borrelia burgdorferi

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

State (n)a Counties with decreasing trend
n (%)
Counties with increasing trend
n (%)
Counties with no change
n (%)
Majority counties decreasing
 Connecticut (n = 8) 5 (62.5) 2 (25.0) 1 (12.5)
 Delaware (n = 3) 3 (100.0) 0 0
 Massachusetts (n = 14) 11 (78.6) 1 (7.1) 2 (14.3)
 Maryland (n = 23) 19 (82.6) 1 (4.3) 3 (13.0)
 New Jersey (n = 21) 14 (66.7) 1 (4.8) 6 (28.6)
 Rhode Island (n = 5) 4 (80.0) 0 1 (20.0)
Majority counties increasing
 New York (n = 60) 9 (15.0) 32 (53.3) 19 (31.7)
 West Virginia (n = 33) 3 (9.1) 21 (63.6) 9 (27.3)
Mixed county trends
 Iowa (n = 43) 3 (7.0) 13 (30.2) 27 (63.0)
 Illinois (n = 54) 8 (14.0) 6 (11.0) 40 (74.0)
 Indiana (n = 52) 6 (11.5) 11 (21.2) 35 (67.3)
 Kentucky (n = 41) 2 (4.9) 9 (22.0) 30 (73.2)
 Maine (n = 16) 2 (12.5) 7 (43.8) 7 (43.8)
 Michigan (n = 60) 7 (11.7) 14 (23.3) 39 (65.0)
 Minnesota (n = 47) 15 (31.9) 3 (6.4) 29 (61.7)
 North Carolina (n = 70) 17 (24.3) 12 (17.1) 41 (58.6)
 North Dakota (n = 8) 0 1 (12.5) 7 (87.5)
 New Hampshire (n = 10) 3 (30.0) 4 (40.0) 3 (30.0)
 Ohio (n = 60) 6 (10.0) 22 (36.7) 32 (53.3)
 Pennsylvania (n = 61) 20 (32.8) 27 (44.3) 14 (23.0)
 South Carolina (n = 23) 1 (4.3) 3 (13.0) 19 (82.6)
 Tennessee (n = 37) 1 (2.7) 5 (13.5) 31 (83.8)
 Virginia (n = 86) 31 (36.0) 8 (9.3) 47 (54.7)
 Vermont (n = 12) 3 (25.0) 4 (33.3) 5 (41.7)
 Wisconsin (n = 58) 24 (41.4) 8 (13.8) 26 (44.8)
  1. aNumber of counties evaluated; data not available from every county in every state listed
  2. Note: Numbers in boldface indicate > 50% of counties evaluated in that state had an increasing or decreasing trend (P < 0.01)