Table 2.
Descriptive statistics of COVID-19 vaccination uptake and independent variables of interest (n = 440).
| N | % | |
|---|---|---|
| COVID-19 vaccination uptake | ||
| Number of doses of COVID-19 vaccination received by the participants | ||
| 0 | 173 | 39.3 |
| 1 | 10 | 2.3 |
| 2 | 257 | 58.4 |
| Perceived impacts of incentives provided by the government on increasing one’s motivation to receive COVID-19 vaccination | ||
| Lottery for winning prizes | ||
| Almost none | 382 | 86.8 |
| Small | 18 | 4.1 |
| Moderate | 22 | 5.0 |
| Large | 18 | 4.1 |
| Item score, mean (SD) | 1.3 | 0.7 |
| Visiting mainland China or other places without quarantine | ||
| Almost none | 248 | 56.4 |
| Small | 50 | 11.4 |
| Moderate | 59 | 13.4 |
| Large | 83 | 18.9 |
| Item score, mean (SD) | 2.0 | 1.2 |
| Allowing visits to elderly homes and hospitals without COVID-19 testing | ||
| Almost none | 308 | 70.0 |
| Small | 45 | 10.2 |
| Moderate | 43 | 9.8 |
| Large | 44 | 10.0 |
| Item score, mean (SD) | 1.6 | 1.0 |
| Entering bars or clubs | ||
| Almost none | 395 | 89.8 |
| Small | 25 | 5.7 |
| Moderate | 17 | 3.9 |
| Large | 3 | 0.7 |
| Item score, mean (SD) | 1.2 | 0.5 |
| Walk-in vaccination services for older adults without prior booking | ||
| Almost none | 336 | 76.4 |
| Small | 21 | 4.8 |
| Moderate | 34 | 7.7 |
| Large | 49 | 11.1 |
| Item score, mean (SD) | 1.5 | 1.0 |
| Satisfaction with COVID-19 vaccination health promotional materials (e.g., advertisements, posters, and others) produced by the government | ||
| Whether the information is easy to understand | ||
| No/uncertain | 49 | 11.1 |
| Yes | 391 | 88.9 |
| Whether the materials can address your concerns related to COVID-19 vaccination | ||
| No/uncertain | 257 | 58.4 |
| Yes | 183 | 41.6 |
| Whether the materials are helpful for you in making a decision on whether to receive a COVID-19 vaccine | ||
| No/uncertain | 228 | 51.8 |
| Yes | 212 | 48.2 |
| Perceptions related to COVID-19 vaccination | ||
| Attitudes toward COVID-19 vaccination, agree | ||
| The protection offered by the COVID-19 vaccination is weaker among people with older age | 75 | 17.0 |
| The side effects of COVID-19 vaccination are more severe among people with older age | 125 | 28.4 |
| Presence of chronic diseases could decrease the protection of COVID-19 vaccination | 135 | 30.7 |
| COVID-19 vaccination could negatively affect the control of existing chronic conditions | 119 | 27.0 |
| Attitude Scale 1, mean (SD) | 7.6 | 2.5 |
| Subjective norm related to COVID-19 vaccination, agree | ||
| Your family doctors would not support you to take up COVID-19 vaccination | 34 | 7.7 |
| Your children or other family members would not support you to take up COVID-19 vaccination | 86 | 19.5 |
| Subjective Norm Scale 2, mean (SD) | 3.4 | 1.1 |
| Perceived behavioral control to take up COVID-19 vaccination agree | ||
| You are confident to receive COVID-19 vaccination if you want to | 414 | 94.1 |
| Item score, mean (SD) | 2.9 | 0.4 |
| Decisional conflicts, agree | ||
| You are sure about which type of COVID-19 vaccine is suitable for you | 302 | 68.6 |
| You are sure about which type of COVID-19 vaccine you should choose | 307 | 69.8 |
| Decisional Conflict Scale 3, mean (SD) | 5.3 | 1.1 |
1 Attitude Scale: 4 items, Cronbach’s alpha: 0.84; one factor was identified by exploratory factor analysis, accounting for 56.1% of total variance. 2 Subjective Norm Scale: 2 items, Cronbach’s alpha: 0.72; one factor was identified by exploratory factor analysis, accounting for 67.8% of total variance. 3 Decisional Conflict Scale: 2 items, Cronbach’s alpha: 0.94; one factor was identified by exploratory factor analysis, accounting for 94.6% of total variance.