Vaccine hesitancy in Hong Kong

Statistic, to determine the statistical significance of association between two categorical variables. (Chi Square Calculator for 2x2, n.d.) The significance level was set to be 0.05. The data were put into a 2x2 contingency table which would then be used for chi-square calculations. The chi-square statistic with Yates correction and the p-value were generated. If the p-value is smaller than 0.05, the correlations between the two variables will be statistically significant.

Results

Background information and vaccine uptake and intention

In this study, a total of 241 respondents aged above 60 completed the questionnaire from 27 February to 9 March, 161 of the respondents were female, taking up about 66.8% of the sample size (Figure 3a). Respondents were split into three age groups: 61 to 70, 71 to 80, 81 to 90. 71.4% of the respondents were aged between 61 and 70; 23.7% were aged between 71 and 80, and 5.0% were aged between 81 to 90. The mean age was 69 years old. While more respondents people aged between 61 and 70 were vaccinated (59.9%), fewer respondents aged 71-80 (40.4%) and 81-90 (41.7%) were vaccinated (Figure 3b). Overall, 131 of the respondents (54.4%) were vaccinated against COVID-19. Gender Number of respondents Female 161 (66.8%) Male 80 (33.2%) Total 241 (100%) Figure 3a. Number of respondents by gender

Figure 3b. Number of vaccinated and unvaccinated respondents in different age groups

Unvaccinated

Vaccinated

Age Group

Total Unvaccinated

No Plan of Vaccination

Wait and see

Plan to Vaccine in 3 months

61 – 70

69 (40.11%)

13

39

17

103 (59.89%)

71 – 80

34 (59.65%)

8

17

9

23 (40.35%)

81 – 90

7 (58.33%)

3

3

1

5 (41.67%)

The vaccinated group was then asked how many doses they received. 66.4% were triple-vaccinated, 32.1% were double-vaccinated, and the rest were just single-vaccinated (Figure 3c). The unvaccinated group was asked about their willingness and readiness to get a jab. 24 of them (21.8%) refused to get a jab, 59 of them (53.6%) said they would take a wait-and-see approach, and 27 of them (21.6%) were planning to be vaccinated in the coming 3 months (Figure 3d). It shows that most of the unvaccinated population were hesitant to the vaccine, so stimuli were needed to incentivize vaccination. The number of people refusing to be vaccinated was nearly the same as those who were unvaccinated but vaccine acceptant.

Overall, 59.89% of respondents aged between 61 and 69, 40.35% of respondents aged between 71 and 80, and 41.67% of respondents aged between 81-90 were vaccinated (Figure 3b). In this study, the proportion of fully vaccinated respondents in all 241 respondents is lower than the actual vaccine doses

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