Table 3.

Multiple logistic regression describing the associations between sociodemographic variables and intentions to participate

		Model 1	Model 2
Variable	Cases (n = 3472)	OR (95% CI)	OR (95% CI)
Any interest to take part in a study on dog ownership and human health
Dog ownership status	3299
Non-dog owner		1	1
Previous dog owner		1.24 (.86–1.77)	1.17 (.81–1.68)
Current dog owner		1.36 (.94–1.97)	1.25 (.86–1.82)
p value		.215	.456
Gender	3300
Male		1	1
Female		1.58 (1.27–1.98)	1.64 (1.31–2.04)
p value		< .001	< .001
Age (years)	3300
18–44		1	1
45–64		1.30 (1.08–1.56)	1.31 (1.–1.58)
65+		1.38 (.986–1.93)	1.49 (1.06–2.10)
p value		<.01	<.01
Education	3300
Less than year 12 or equivalent		1	1
Year 12 or equivalent		1.04 (.73–1.49)	1.12 (.78–1.62)
Trade certificate/diploma		1.12 (.78–1.62)	1.21 (.84–1.75)
Bachelor’s degree/postgrad		1.09 (.79–1.50)	1.17 (.84–1.62)
p value		.910	.759
Any interest to take part in a study with a waiting list of up to 3 months
Dog ownership status	2471
Non-dog owner		1	1
Previous dog owner		.74 (.48–1.13)	.76 (.49–1.17)
Current dog owner		.64 (.41–.99)	.64 (.41–1.00)
p value		.079	.066
Gender	2472
Male		1	1
Female		1.23 (.96–1.57)	1.22 (.95–1.56)
p value		.106	.126
Age (years)	2472
18–44		1	1
45–64		.95 (.79–1.15)	.96 (.79–1.16)
65+		.75 (.55–1.03)	.77 (.56–1.07)
p value		.206	.292
Education	2472
Less than year 12 or equivalent		1	1
Year 12 or equivalent		1.04 (.71–1.53)	1.00 (.68–1.48)
Trade certificate/diploma		1.02 (.70–1.50)	1.01 (.69–1.49)
Bachelor’s degree/postgrad		.92 (.65–1.29)	.88 (.62–1.25)
p value		.690	.554

Model 1 unadjusted

Model 2 is adjusted for age, sex, education level and dog ownership status

OR odd ratio, CI confidence interval, N number of participants in sample