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Table 4 Tick-borne disease seropositivity predicted by age and exposure to via unadjusted analysis

From: Predominant risk factors for tick-borne co-infections in hunting dogs from the USA

Variable

Babesia spp.-positive

Babesia spp.-negative

Relative risk (95% CI)

P-value

Age, n (%)

  

0.6598 (0.49–0.957)

0.0331*

 ≤ 6 years

74 (40.44)

109 (59.56)

  

 > 6 years

19 (61.26)

12 (38.71)

  

Sex, n (%)

  

1.276 (0.939–1.065)

0.1310

 Male

53 (48.62)

56 (51.38)

  

 Female

40 (38.10)

65 (61.90)

  

Region, n (%)

   

0.2665

 East

45 (43.27)

59 (56.73)

  

 Midwest

21 (52.50)

19 (47.50)

  

 South

12 (50.00)

12 (50.00)

  

 West

15 (32.61)

31 (67.39)

  

% Exposed to B. burgdorferi

30 (50.00)

30 (50.00)

1.222 (0.877–1.654)

0.2829

% Exposed to Anaplasma spp.

39 (59.09)

27 (40.91)

1.62 (1.199–2.159)

0.0027*

% Exposed to Ehrlichia spp.

13 (54.17)

11 (45.83)

1.29 (0.811–1.816)

0.2815

  1. *Variables significantly associated with Babesia spp. seropositivity at P < 0.05