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 (%) | Â | Â | Â | 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 |