Table 2.

Demographic characteristics of the recruited dogs in the placebo-control and DAP groups

	Placebo		DAP
	n	%	n	%
Variables	19	44.2	24	55.8
Sex
Male	12	63.2	8	33.8
Female	7	36.8	16	66.7
Breed
Pure	18	94.7	21	87.5
Mixed	1	5.3	3	12.5
Sterilization status
Neutered	6	31.6	4	16.7
Intact	13	68.4	20	83.3
Age (year)
Male (mean age)	4.6		6.3
Female (mean age)	6.1		5.6
Range (years)	1 to 13		1 to 17

n = number of dogs.