Table 2.

Baseline characteristics in healthy dogs and groups of canine cardiac patients (ISACHC I–III)

Group	Healthy	ISACHC I	ISACHC II	ISACHC III
Number	12	10	26	26
Sex (female/male)	9/3	3/7	8/18	7/19
Age (years) mean ± SD	6.7 ± 3.4	7.3 ± 3.7	10.8 ± 3.9*	10.3 ± 4.1*
Weight (kg)
Median	28.7	14.0	9.9	26.4
Interquartile range	22.5–33.0	6.2–45.7	6.9–36.0	10.5–32.8

ISACHC International Small Animal Cardiac Health Council; SD standard deviation

^* P < 0.05 in comparison with healthy dogs