Table 4.
Factors associated with behavioural intention to receive seasonal influenza vaccination.
| OR (95% CI) |
p Values | AOR (95% CI) |
p Values | |
|---|---|---|---|---|
| COVID-19 vaccination status | ||||
| Number of doses of COVID-19 vaccination received by the participants | ||||
| 0 | 1.00 | 1.00 | ||
| ≥1 | 1.61 (1.09, 2.37) |
0.02 | 1.65 (0.96, 2.84) |
0.07 |
| Perceptions related to COVID-19 and COVID-19 vaccination | ||||
| Which virus of COVID-19 and seasonal influenza has higher infectivity? | ||||
| Uncertain | 1.00 | 1.00 | ||
| COVID-19 | 1.76 (1.14, 2.70) |
0.01 | 1.93 (1.05, 3.56) |
0.04 |
| No different | 1.34 (0.64, 2.80) |
0.44 | 1.71 (0.64, 4.59) |
0.29 |
| Seasonal influenza | 1.46 (0.82, 2.62) |
0.20 | 2.12 (0.95, 4.73) |
0.07 |
| If you do not receive seasonal influenza vaccination, how high is your chance of having seasonal influenza and COVID-19 co-infection in the incoming flu season? | 3.51 (2.43, 5.05) |
<0.001 | 3.07 (1.90, 4.94) |
<0.001 |
| Seasonal influenza vaccination would reduce the effectiveness of COVID-19 vaccination | 0.31 (0.21, 0.47) |
<0.001 | 0.50 (0.30, 0.85) |
0.01 |
| COVID-19 vaccination would reduce the effectiveness of seasonal influenza vaccination | 0.31 (0.20, 0.46) |
<0.001 | 0.50 (0.29, 0.86) |
0.01 |
| Knowledge related to seasonal influenza vaccination | ||||
| Knowledge score | 1.07 (0.67, 1.69) |
0.79 | 0.67 (0.38, 1.19) |
0.17 |
| Perceptions related to seasonal influenza vaccination | ||||
| Perceived susceptibility a | 4.57 (3.11, 6.72) |
<0.001 | 3.59 (2.18, 5.89) |
<0.001 |
| Perceived severity a | 3.61 (2.51, 5.19) |
<0.001 | 3.30 (2.02, 5.40) |
<0.001 |
| Perceived Benefit Scale | 1.86 (1.62, 2.14) |
<0.001 | 1.59 (1.33, 1.89) |
<0.001 |
| Perceived barrier a | ||||
| Seasonal influenza vaccination has severe side effects | 0.15 (0.10, 0.25) |
<0.001 | 0.28 (0.16, 0.48) |
<0.001 |
| Seasonal influenza vaccination is too expensive for you | 0.99 (0.59, 1.66) |
0.96 | 0.94 (0.45, 1.96) |
0.88 |
| It is inconvenient for you to receive seasonal influenza vaccination | 1.61 (0.89, 2.91) |
0.12 | 2.05 (0.94, 4.49) |
0.07 |
| Your health conditions are not suitable for seasonal influenza vaccination | 0.52 (0.40, 0.68) |
<0.001 | 0.56 (0.40, 0.80) |
0.001 |
| Cue to Action Scale | 3.62 (2.78, 4.72) |
<0.001 | 2.31 (1.69, 3.14) |
<0.001 |
| Perceived Self-efficacy Scale | 1.64 (1.14, 2.38) |
0.01 | 1.42 (0.88, 2.28) |
0.15 |
| Peer influence related to seasonal influenza vaccination | ||||
| Your family or friends had history of seasonal influenza | ||||
| No | 1.00 | 1.00 | ||
| Yes | 0.51 (0.35, 0.75) |
<0.001 | 0.59 (0.35, 0.98) |
0.04 |
| In Hong Kong, how many people of your age would receive seasonal influenza vaccination for the incoming flu season? | ||||
| Very few/few/some | 1.00 | 1.00 | ||
| Many/great many | 3.61 (2.27, 5.73) |
<0.001 | 2.08 (1.15, 3.76) |
0.02 |
OR: odds ratio, CI: confidence interval, AOR: adjusted odds ratio, adjusted for significant background characteristics in Table 3. a: Item scores were used for data analyses.