Table 3.
Variables associated with the willingness to be vaccinated against COVID-19. From the left: the first column shows the variables included in the analyses. The second column shows the “willingness to be vaccinated” among the categories reported in each item. The third and the fourth columns show the results of the single logistic regression analyses and the results of the multiple logistic regression analysis.
| Variable | Willingness to Be Vaccinated | Single Logistic Regression Analyses | Multiple Logistic Regression Model | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No/Not Sure (%) Total: 1374 (18.1) |
Yes/Probably (%) Total: 6231 (81.9) |
OR | Lower 95% CI | Upper 95% CI | p-Value | OR | Lower 95% CI | Upper 95% CI | p-Value | |
| Age | - | 0.995 | 0.990 | 0.998 | 0.01 | 0.995 | 0.988 | 1.001 | 0.13 | |
| Sex * | ||||||||||
| Female | 959 (19.4) | 3980 (80.6) | 1.00 | 1.00 | ||||||
| Male | 387 (14.8) | 2236 (85.2) | 1.39 | 1.22 | 1.59 | <0.001 | 1.38 | 1.12 | 1.71 | 0.002 |
| Study | ||||||||||
| Elementary school | 5 (15.6) | 27 (84.4) | 1.29 | 0.54 | 3.83 | 0.598 | ||||
| Secondary school | 140 (24.2) | 438 (75.8) | 0.75 | 0.61 | 0.93 | 0.01 | ||||
| High school | 580 (19.3) | 2420 (80.7) | 1.00 | |||||||
| Bachelor’s degree | 221 (20.7) | 849 (79.3) | 0.92 | 0.98 | 2.05 | 0.35 | ||||
| Master’s degree | 393 (14.6) | 2293 (85.4) | 1.40 | 1.21 | 1.61 | <0.001 | ||||
| PhD | 35 (14.6) | 204 (85.4) | 1.40 | 0.78 | 1.10 | 0.07 | ||||
| Healthcare professional | ||||||||||
| No | 901 (18.5) | 3975 (81.5) | 1.00 | |||||||
| Yes | 473 (17.3) | 2256 (82.7) | 1.08 | 0.96 | 1.22 | 0.20 | ||||
| Trust in institutions | ||||||||||
| 1 (No trust) | 243 (72.8) | 91 (27.2) | 1.00 | 1.00 | ||||||
| 2 | 648 (38.1) | 1054 (61.9) | 4.34 | 3.36 | 5.66 | <0.001 | 1.69 | 1.12 | 2.58 | 0.014 |
| 3 | 459 (9.9) | 4174 (90.1) | 24.29 | 18.80 | 31.60 | <0.001 | 2.71 | 1.79 | 4.11 | <0.001 |
| 4 (Full trust) | 24 (2.6) | 912 (97.4) | 101.47 | 64.53 | 166.28 | <0.001 | 3.93 | 2.04 | 7.83 | <0.001 |
| Employed | ||||||||||
| No | 286 (15.1) | 1613 (84.9) | 1.00 | 1.00 | ||||||
| Yes | 1088 (19.1) | 4618 (80.9) | 0.75 | 0.65 | 0.86 | <0.001 | 0.77 | 0.61 | 0.95 | 0.02 |
| Hesitant subject | ||||||||||
| No | 185 (3.3) | 5430 (96.7) | 1.00 | 1.00 | ||||||
| Yes | 1189 (59.7) | 801 (40.3) | 0.020 | 0.019 | 0.027 | <0.001 | 0.13 | 0.11 | 0.17 | <0.001 |
| Influenza vaccination in 2020–2021 | ||||||||||
| No | 1122 (26.1) | 3174 (73.9) | 1.00 | 1.00 | ||||||
| Yes | 252 (7.6) | 3057 (92.4) | 4.28 | 3.71 | 4.97 | <0.001 | 2.09 | 1.68 | 2.58 | <0.001 |
| “Have you or others you know been infected by SARS-CoV-2?” | ||||||||||
| No | 237 (22.4) | 822 (77.6) | 1.00 | |||||||
| Yes | 1137 (17.4) | 5409 (82.6) | 1.37 | 1.17 | 1.60 | <0.001 | 0.93 | 0.74 | 1.23 | 0.6 |
| “Have you or others you know been hospitalized because of COVID-19?” | ||||||||||
| No | 634 (18.9) | 2719 (81.1) | 1.00 | |||||||
| Yes | 740 (17.4) | 3512 (82.6) | 1.11 | 0.98 | 1.24 | 0.09 | ||||
| “Do you think COVID-19 vaccines will be safe, once approved?” | ||||||||||
| No | 542 (89.1) | 66 (10.9) | 1.00 | 1.00 | ||||||
| I don’t know | 816 (22.8) | 2746 (77.2) | 27.81 | 21.45 | 36.64 | <0.001 | 4.35 | 3.19 | 6.01 | <0.001 |
| Yes | 16 (0.5) | 3401 (99.5) | 1745.58 | 1034.53 | 3149.07 | <0.001 | 56.33 | 31.73 | 105.87 | <0.001 |
| “How relevant do you think the COVID-19 vaccination will be in fighting against the pandemics ?” | ||||||||||
| Not relevant at all | 145 (96.7) | 5 (3.3) | 1.00 | 1.00 | ||||||
| Not very relevant | 322 (93.1) | 24 (6.9) | 2.16 | 0.87 | 6.52 | 0.12 | 1.30 | 0.42 | 5.31 | 0.68 |
| Quite relevant | 541 (41.9) | 750 (58.1) | 40.20 | 18.18 | 113.94 | <0.001 | 8.08 | 2.81 | 30.98 | <0.001 |
| Absolutely relevant | 366 (6.3) | 5452 (93.7) | 431.99 | 195.52 | 1223.75 | <0.001 | 27.99 | 9.77 | 107.04 | <0.001 |
* 43 observations deleted due to missingness, as reported in Table 1.