Table 3 Multivariable logistic regression models for canine seroprevalence in Ontario, Manitoba and Quebec, Canada (2008–2015) for Borrelia burgdorferi, Ehrlichia spp. and Anaplasma spp., and the antigen of Dirofilaria immitis

Year

0.35 (0.19–0.52)

<0.001

0.37 (0.30–0.45)

<0.001

0.26 (0.09–0.42)

0.003

-0.95 (-1.14– -0.75)

<0.001

Year²

-0.03 (-0.05– -0.02)

<0.001

-0.03 (-0.03– -0.02)

<0.001

-0.01 (-0.03–0.003)

0.1

0.09 (0.07–0.11)

<0.001

Province

<0.001

<0.001

<0.001

<0.001

Ontario

Manitoba

0.82 (0.12–1.52)

0.02

0.93 (0.55–1.31)

<0.001

-2.29 (-3.80– -0.79)

0.003

-1.90 (-2.91– -0.88)

<0.001

Quebec

-1.57 (-2.72– -0.42)

0.007

-0.30 (-0.75–0.16)

0.2

-1.79 (-2.87– -0.70)

0.001

-3.41 (-4.69– -2.13)

<0.001

Province*Year

0.01

<0.001

0.03

<0.001

Ontario*Year

Manitoba*Year

0.08 (-0.19–0.36)

0.6

-0.29 (-0.44– -0.13)

<0.001

0.75 (0.20–1.31)

0.008

1.07 (0.65–1.49)

<0.001

Quebec*Year

0.60 (0.17–1.03)

0.006

0.10 (-0.07–0.27)

0.3

0.85 (0.46–1.24)

<0.001

1.61 (1.12–2.10)

<0.001

Province*Year²

0.05

<0.001

<0.001

<0.001

Ontario*Year²

Manitoba*Year²

-0.003 (-0.03–0.02)

0.8

0.03 (0.01–0.04)

<0.001

-0.06 (-0.11– -0.01)

0.02

-0.09 (-0.13– -0.05)

<0.001

Quebec*Year²

-0.05 (-0.09– -0.008)

0.02

-0.001 (-0.02–0.02)

0.9

-0.07 (-0.10– -0.04)

<0.001

-0.14 (-0.18– -0.09)

<0.001