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Table 1 Canine vector-borne pathogen seroprevalence in Canada (2008–2015) for Borrelia burgdorferi, Ehrlichia and Anaplasma spp., and the antigen of Dirofilaria immitis (n = 753,468), and univariable associations between province and serostatus
| Province | B. burgdorferi | Ehrlichia spp. | Anaplasma spp. | D. immitis | |
|---|---|---|---|---|---|
| Ontario | No. positive/No. tested (%) | 10,186/564,552 (1.8) | 2009/564,552 (0.4) | 1719/564,476 (0.3) | 703/564,552 (0.1) |
| Odds ratio | Referent | Referent | Referent | Referent | |
| Alberta | No. positive/No. tested (%) | 54/6697 (0.8) | 329/6697 (4.9) | 98/6664 (1.5) | 12/6,697 (0.2) |
| Odds ratio; P-value | 0.4; P < 0.001 | 14.5; P < 0.001 | 4.9; P < 0.001 | 1.4; P = 0.2 | |
| British Columbia | No. positive/No. tested (%) | 23/4815 (0.5) | 316/4815 (6.6) | 133/4802 (2.8) | 7/4815 (0.2) |
| Odds ratio; P-value | 0.3; P < 0.001 | 19.7; P < 0.001 | 9.3; P < 0.001 | 1.2; P = 0.6 | |
| Manitoba | No. positive/No. tested (%) | 1718/72,254 (2.4) | 211/72,254 (0.3) | 695/72,158 (1.0) | 250/72,254 (0.4) |
| Odds ratio; P-value | 1.3; P < 0.001 | 0.8; P = 0.006 | 3.2; P < 0.001 | 2.8; P < 0.001 | |
| New Brunswick | No. positive/No. tested (%) | 158/2129 (7.4) | 17/2129 (0.8) | 18/2129 (0.9) | 3/2129 (0.1) |
| Odds ratio; P-value | 4.4; P < 0.001 | 2.3; P = 0.001 | 2.8; P < 0.001 | 1.1; P = 0.8 | |
| Newfoundland | No. positive/No. tested (%) | 6/236 (2.5) | 3/236 (1.3) | 1/236 (0.4) | 1/236 (0.4) |
| Odds ratio; P-value | 1.4; P = 0.4 | 3.6; P = 0.03 | 1.4; P = 0.7 | 3.4; P = 0.2 | |
| Nova Scotia | No. positive/No. tested (%) | 592/6464 (9.2) | 37/6464 (0.6) | 85/6429 (1.3) | 12/6464 (0.2) |
| Odds ratio; P-value | 5.5; P < 0.001 | 1.6; P = 0.004 | 4.4; P < 0.001 | 1.5; P = 0.2 | |
| Prince Edward Island | No. positive/No. tested (%) | 1/3 (33.3) | 0/3 (0) | 0/3 (0) | 0/3 (0) |
| Odds ratio; P-value | np | np | np | np | |
| Quebec | No. positive/No. tested (%) | 2229/95,898 (2.3) | 582/95,898 (0.6) | 363/95,891 (0.4) | 274/95,898 (0.3) |
| Odds ratio; P-value | 1.3; P < 0.001 | 1.7; P < 0.001 | 1.2; P < 0.001 | 2.3; P < 0.001 | |
| Saskatchewan | No. positive/No. tested (%) | 3/408 (0.7) | 5/408 (1.2) | 0/408 (0) | 1/408 (0.3) |
| Odds ratio; P-value | 0.4; P = 0.1 | 3.4; P = 0.006 | np | 2.0; P = 0.5 | |
| Yukon | No. positive/No. tested (%) | 0/12 (0) | 1/12 (8.3) | 0/12 (0) | 0/12 (0) |
| Odds ratio; P-value | np | np | np | np | |
| All of Canada | No. positive/No. tested (%) | 14,970/753,468 (2.0) | 3510/753,468 (0.5) | 3112/753,208 (0.4) | 1263/753,468 (0.2) |
