Table 1.

Distribution of cat-level characteristics and management of cats amongst the sampled cat population

	Missing values		Seropositivity to SARS-CoV-2 antibodies
Exposure		n cats total (%)	n positive cats (%)	PR (95% BCI)
Age	0
< 2 years old		9 (16%)	6 (66%)	Ref.
2 to 8 years old		24 (44%)	15 (63%)	1.00 (0.59–2.07)
> 8 years old		22 (40%)	17 (77%)	1.19 (0.75–2.41)
Sex	0
Female		28 (51%)	20 (71%)	Ref.
Male		27 (49%)	18 (67%)	0.93 (0.64–1.32)
Breed	0
Domestic		50 (91%)	34 (68%)	Ref.
Purebred†		5 (9%)	4 (80%)	0.99 (0.41–1.50)
Chronic disease(s)	0
No		51 (93%)	34 (67%)	Ref.
Yes		4 (7%)	4 (100%)	1.17 (0.55–1.68)
Access to outdoor	0
No		41 (75%)	29 (71%)	Ref.
Yes		14 (25%)	9 (64%)	0.88 (0.50–1.29)
Isolation of the cat from the infected human	0
No		50 (91%)	35 (70%)	Ref.
Yes		5 (9%)	3 (60%)	0.78 (0.24–1.40)
Use of PPE when interacting with the cat	3
No		47 (90%)	32 (68%)	Ref.
Yes		5 (10%)	3 (60%)	0.80 (0.25–1.43)
Access to owner’s toilet	14
No		16 (39%)	14 (88%)	Ref.
Yes		25 (61%)	16 (64%)	0.78 (0.52–1.14)
Close contact with the infected human per week	14
≤ 2 h		12 (29%)	8 (67%)	Ref.
> 2 to < 21 h		18 (44%)	14 (78%)	1.16 (0.74–2.09)
≥ 21 h		11 (27%)	8 (73%)	1.08 (0.59-2.00)

PPE: personal protective equipment

†Bengal (n = 1), Himalayan Blue Point (n = 1), Siamese (n = 2), and Siberian (n = 1)

Distribution of cat-level characteristics and management of 55 cats from 40 households in Québec and British Columbia (Canada) with at least one confirmed human case of COVID-19 within 15 days prior to sampling. Prevalence ratio (PR) and 95% Bayesian credibility intervals (BCI) of SARS-CoV-2 seropositivity to SARS-CoV-2 antibodies for each cat-level exposure was calculated using a Bayesian mixed log-binomial models that included household as a random intercept