a significant trendP < 0.0001
According to data published by the Companion Animal Parasite Council website ( www.capcvet.org ), the percentage of Ohio dogs tested positive for exposure to the Lyme disease spirochete by the SNAP 4Dx Plus Test was 0.39% (218 of 54,963) for 2011, 0.55% (250 of 45,376) for 2012, 0.56% for 2013 (543 of 96,016), and 0.62% (102 of 16,343) for 2014 as of April 23, 2014, showing a significant trend of increase ( P < 0.0001, Chi-square test for trend).