Table 5 Significant results of two multivariate regression models: 1) A binary logistic regression model of the associations between GI parasite presence and dog demographic and exposure dimensions and age, breed, gender, and park management variables; 2) A negative binomial regression model of the associations between GI parasite median intensity and dog demographic and exposure dimensions and age, breed, gender, and park management variables

1) Presence/absence^a:

Giardia spp. (n = 248)

Dog Demographics Dimension

15.2

-0.499^b

1

<0.001

Overall model

7

0.001

-86.9

24.4

Any parasite (n = 248)

Exposure Dimension

4.9

0.287

1

0.026

Dog Demographics Dimension

8.3

-0.366

1

0.004

Overall model

7

0.006

-111.7

19.7

2) Infection intensity:

Giardia spp. (n = 61)

Exposure Dimension

4.5

0.357^c

1

0.035

Dog Demographics

Dimension

7.0

-0.278

1

0.008

Female Gender

4.8

0.698

1

0.028

Purebred

3.9

-0.620

1

0.048

Overall model

7

0.001

-318.1

27.1

Cryptosporidium spp. (n = 36)

Dog Demographics Dimension

11.4

-0.751

1

0.001

Visited Veterinarian within previous 12 months

8.2

2.894

1

0.004

Overall model

7

0.001

-87.9

48.8