Table 2 Weighted proportions and multinomial logistic regression of factors associated with COVID-19 vaccine third dose intentions

Age (in years)

1.03 (1.03, 1.04)

1.03 (1.02, 1.03)

1.01 (1.00, 1.01)

1.01 (1.01, 1.02)

Gender

 Woman

Ref

Ref

Ref

Ref

 Man

0.93 (0.80, 1.07)

1.13 (0.90, 1.42)

0.75 (0.62, 0.90)

0.93 (0.73, 1.19)

 Other

1.11 (0.48, 2.54)

1.51 (0.37, 6.15)

0.82 (0.28, 2.43)

1.48 (0.34, 6.52)

Region of residence

 British Columbia

Ref

-

Ref

-

 Alberta

0.81 (0.60, 1.11)

-

0.73 (0.49, 1.06)

-

 Saskatchewan

0.61 (0.38, 0.99)

-

0.70 (0.39, 1.27)

-

 Manitoba

0.69 (0.46, 1.03)

-

0.39 (0.22, 0.68)

-

 Ontario

0.84 (0.66, 1.08)

-

0.82 (0.61, 1.11)

-

 Quebec

0.65 (0.50, 0.85)

-

0.58 (0.42, 0.80)

-

 Atlantic

0.74 (0.52, 1.04)

-

0.46 (0.29, 0.73)

-

Self-reported race and ethnicity

 White

Ref

Ref

Ref

Ref

 Visible minority

1.17 (0.97, 1.41)

0.92 (0.67, 1.25)

1.76 (1.40, 2.21)

1.41 (1.02, 1.95)

 Indigenous

0.72 (0.53, 0.98)

0.79 (0.49, 1.27)

0.71 (0.46, 1.09)

0.80 (0.47, 1.36)

Majority first language (English or French)

 Yes

Ref

Ref

Ref

Ref

 No

1.18 (0.98, 1.42)

1.34 (0.97, 1.85)

1.47 (1.17, 1.85)

1.44 (1.03, 2.02)

Newcomer

 No

Ref

Ref

Ref

Ref

 Yes

0.75 (0.52, 1.08)

0.85 (0.49, 1.50)

1.02 (0.64, 1.62)

0.74 (0.40, 1.36)

Parent

 Yes

Ref

Ref

Ref

Ref

 No

1.91 (1.64, 2.22)

1.27 (1.00, 1.60)

1.26 (1.04, 1.53)

0.90 (0.70, 1.15)

Disability

 No

Ref

Ref

Ref

Ref

 Yes

1.20 (0.98, 1.47)

1.33 (0.96, 1.86)

1.09 (0.85, 1.41)

1.58 (1.11, 2.23)

Chronic illness

 No

Ref

Ref

Ref

Ref

 Yes

1.56 (1.31, 1.86)

1.37 (1.03, 1.82)

0.83 (0.66, 1.05)

0.90 (0.66, 1.22)

Healthcare worker

 No

Ref

Ref

Ref

Ref

 Yes

1.04 (0.80, 1.35)

0.80 (0.55, 1.15)

0.80 (0.57, 1.14)

0.67 (0.44, 1.01)

Annual household income

 < 40,000

Ref

Ref

Ref

Ref

 40,000–79,999

1.43 (1.16, 1.77)

1.15 (0.83, 1.59)

1.24 (0.95, 1.62)

1.06 (0.75, 1.48)

 80,000 + 

1.60 (1.32, 1.94)

1.21 (0.88, 1.65)

1.08 (0.84, 1.38)

0.83 (0.59, 1.15)

Education

 High school or less

Ref

Ref

Ref

Ref

 Non-university certificate or diploma

0.98 (0.80, 1.91)

0.96 (0.70, 1.31)

0.90 (0.69, 1.16)

0.89 (0.64, 1.24)

 University certificate, bachelor’s degree, post-graduate degree

1.65 (1.36, 1.99)

1.41 (1.04, 1.92)

1.30 (1.02, 1.66)

1.10 (0.79, 1.53)

Influenza vaccination intention

 Disagree

Ref

Ref

Ref

Ref

 Neutral

3.66 (2.94, 4.56)

4.01 (2.94, 5.46)

2.96 (2.31, 3.80)

2.86 (2.07, 3.95)

 Agree

34.42 (26.80, 44.19)

15.75 (11.71, 21.18)

5.46 (4.11, 7.25)

2.90 (2.09, 4.03)

COVID-19 vaccination status

 None received

Ref

Ref

Ref

Ref

 Received only 1 dose

13.30 (7.90, 22.39)

13.78 (7.40, 25.64)

2.79 (1.68, 4.64)

3.07 (1.74, 5.42)

 Received 2 doses

189.33 (125.56, 285.51)

97.68 (60.25, 158.38)

16.48 (12.23, 22.20)

13.67 (9.68, 19.30)

COVID-19 disease history

 Yes

Ref

Ref

Ref

Ref

 No

3.51 (2.88, 4.28)

1.80 (1.31, 2.47)

2.41 (1.85, 3.15)

1.64 (1.16, 2.32)