Table 3. Binary logistic regression results on the socio-demographic factors associated with COVID-19 symptoms.

Variables	Respondents only having COVID-19 symptoms in the past 2 weeks
	aOR [95%CI]; Model 1	aOR [95%CI]; Model 2	aOR [95%CI]; Model 3	aOR [95%CI]; Model 4
Gender
Female	Reference	Reference	Reference	Reference
Male	1.22[0.85–1.76]	1.22[0.85–1.75]	1.35[0.93–1.94]	1.30[0.91–1.86]
Age
18–44	Reference	Reference	Reference	Reference
45–64	0.52**[0.34–0.80]	0.51**[0.33–0.79]	0.65[0.42–1.01]	0.63*[0.41–0.98]
65–84	0.45***[0.31–0.67]	0.45***[0.30–0.67]	0.45***[0.30–0.68]	0.42***[0.28–0.64]
85 years and above	-	-	-	-
Province
Quebec		Reference	Reference	Reference
British Columbia		0.57[0.31–1.04]	0.62[0.33–1.14]	0.61[0.33–1.14]
Ontario		0.97[0.68–1.40]	1.07[0.73–1.55]	1.08[0.74–1.57]
Alberta		1.28[0.63–2.58]	1.69[0.83–3.44]	1.67[0.83–3.40]
Other		1.92*[1.09–3.35]	1.88*[1.07–3.29]	1.88*[1.08–3.28]
Race
White		Reference	Reference	Reference
Black		1.42[0.41–4.94]	1.68[0.50–5.68]	1.82[0.55–6.03]
Mixed race		2.18[0.85–5.61]	2.63*[1.14–6.10]	2.77*[1.18–6.48]
Other		0.67[0.22–2.09]	0.71[0.25–2.07]	0.75[0.27–2.13]
Minority group
No		Reference	Reference	Reference
Yes		0.63[0.27–1.51]	0.51[0.23–1.15]	0.52[0.23–1.16]
Highest level of education
High school or less			Reference	Reference
College			1.00[0.56–1.79]	0.96[0.54–1.71]
Postgraduate			1.53[0.78–3.01]	1.45[0.73–2.86]
Total income in 2019
Less than $20,000			Reference	Reference
$20,000 to less than $50,000			1.16[0.71–1.89]	1.13[0.69–1.85]
$50,000 to less than $100,000			0.75[0.45–1.26]	0.75[0.45–1.25]
$100,000 or more			0.12***[0.07–0.43]	0.18***[0.07–0.45]
Number of household members
1				Reference
2–3				1.03[0.66–1.60]
4 or more				0.74[0.43–1.27]
Pseudo R-squared	0.020	0.045	0.069	0.071

Exponentiated coefficients; 95% confidence intervals in brackets

aOR adjusted odds ratios

CI Confidence Interval

* p < 0.05

** p < 0.01

*** p < 0.001