Skip to main content
. 2021 Mar 9;23(3):e24673. doi: 10.2196/24673

Table 3.

Associations between background characteristics and behavioral intention to receive COVID-19 vaccination under different scenarios (N=2053).

Characteristics Conditional on 80% efficacy and market rate, ORa,b (95% CI) Conditional on 80% efficacy and free vaccines, OR (95% CI)
Age group (years)

18-30 1.0 1.0

31-40 0.80 (0.64-1.01) 0.95 (0.72-1.25)

41-50 0.62 (0.48-0.79)*** 0.61 (0.42-0.76)***

>50 0.48 (0.29-0.79)** 0.57 (0.32-1.02)
Gender

Male 1.0 1.0

Female 1.16 (0.96-1.41) 0.99 (0.78-1.24)
Relationships status

Currently single 1.0 1.0

Having a stable boyfriend/girlfriend 1.44 (0.94-2.20) 1.55 (0.89-2.71)

Married 0.94 (0.74-1.18) 0.77 (0.58-1.02)
Having children

No 1.0 1.0

Yes 0.77 (0.62-0.95)* 0.66 (0.50-0.86)*
Highest education level attained

Junior high or below 1.0 1.0

Senior high or equivalent 1.57 (1.26-1.96)*** 2.09 (1.60-2.73)***

College/university or above 1.94 (1.52-2.47)*** 3.39 (2.69-5.01)***
Monthly personal income (¥; US $)

<3000 (463.84) 1.0 1.0

3000-4999 (463.84-772.92) 1.11 (0.89-1.40) 1.20 (0.89-1.50)

5000-6999 (773.07-1082.15) 1.36 (1.01-1.83)* 1.39 (0.99-1.97)*

7000-9999 (1082.30-1545.99) 1.47 (0.97-2.21)* 1.76 (1.05-2.94)*

≥10,000 (1546.14) 1.60 (1.01-2.56)* 4.82 (2.05-11.36)***
Type of work

Frontline workers 1.0 1.0

Management staff 1.24 (1.01-1.54)** 1.66 (1.26-2.19)***
Factory type

Electronic devices manufacturer 1.0 1.0

Other factories 1.27 (0.97-1.52) 1.09 (0.83-1.42)
History of seasonal influenza vaccination

No 1.0 1.0

Yes 1.29 (1.02-1.64)* 1.28 (0.95-1.71)
Having a family member with history of COVID-19

No 1.0 1.0

Yes 4.85 (2.21-10.53)*** 6.49 (3.10-13.51)***

aOR: odds ratio.

bCrude ORs obtained by using univariate two-level logistic regression models.

*P<.05, **P<.01, ***P<.001.