Table 3.

Counts and associated P-values for potential Bordetella bronchiseptica exposure variables

Bordetella exposure variables	Treatment group		P-value
	Injectable Bb vaccine Number of dogs	Intranasal Bb vaccine Number of dogs
Boarded (previous 12 months)			0.98
a. None	21	17
b. 1 time	4	6
c. 1 to 2 times	1	1
d. 2 times	21	17
e. 2 to 3 times	10	12
f. 3 times	2	3
g. 3 to 4 times	5	2
h. > 4 times	7	5
i. Other	6	4
Total	77	67
Groomed (previous 12 months)			0.87
a. None	47	40
b. Monthly	6	5
c. Every other month	8	9
d. 4 to 5 times per year	4	7
e. 2 to 3 times per year	6	4
f. 1 time per year	0	0
g. Other (regularly)	6	2
Total	77	67
Other exposure factors (previous 12 months)			0.64
a. None	67	60
b. Dog park	2	1
c. Travel with family	4	3
d. Interact with other dogs	0	1
e. Fostering other dogs	4	2
Total	77	67
Potential exposure (1 month prior to sample)			0.40
a. None	55	52
b. Boarded	5	1
c. Groomed	7	11
d. Foster dogs	3	1
e. Other (travel, dog day care, dog show, extended family dog interaction)	7	2
Total	77	67
Potential exposure (between 2 test periods)			0.84
a. None	61	54
b. Boarded	8	7
c. Groomed	2	5
d. Foster dogs	3	0
e. Other (travel, dog day care, dog show, extended family dog interaction)	3	1
Total	77	67