Table 5 Ehrlichia spp. seropositivity predicted by region and age via unadjusted analysis
From: Predominant risk factors for tick-borne co-infections in hunting dogs from the USA
| Variable | Ehrlichia spp.-positive | Ehrlichia spp.-negative | Unadjusted relative risk (95% CI) | P-value |
|---|---|---|---|---|
| Age, n (%) | 0.4114 (0.196–0.920) | 0.0571* | ||
| ≤ 6 years | 17 (9.29) | 166 (90.71) | ||
| > 6 years | 7 (22.58) | 24 (77.42) | ||
| Sex, n (%) | 1.349 (0.640–2.860) | 0.5185 | ||
| Male | 14 (12.84) | 95 (87.16) | ||
| Female | 10 (9.52) | 95 (90.48) | ||
| Region, n (%) | ||||
| East | 3 (2.88) | 101 (97.12) | < 0.0001* | |
| Midwest | 15 (37.50) | 25 (62.60) | ||
| South | 5 (20.83) | 19 (79.17) | ||
| West | 1 (2.17) | 45 (97.83) | ||
| % Exposed to B. burgdorferi | 8 (13.33) | 52 (86.67) | 1.283 (0.583–2.744) | 0.6299 |
| % Exposed to Anaplasma spp. | 11 (16.67) | 55 (83.33) | 1.897 (0.905–3.920) | 0.1037 |
| % Exposed to Babesia spp. | 13 (13.98) | 80 (86.02) | 1.538 (0.734–3.221) | 0.2815 |