Table 2. Sex status of dogs with HC compared with dogs in the control group and relative OR.

Sex status	Dogs with HC	Control group	OR (CI)	p value
Male	39	10,015	1	NA
Females	65	9,044	1.85 (1.24–2.75)	0.0025
Intact	51	13,520	1	NA
Neutered	53	5,539	2.54 (1.72–3.73)	<0.0001
Intact females	20	4,857	1	NA
Neutered females	45	4,187	2.61 (1.54–4.42)	0.0004
Intact males	31	8,663	1	NA
Neutered males	8	1,352	1.65 (0.76–3.6)	0.2

NA: not applicable; CI: confidence interval.