Table 2. Demographics characteristics and factors associated with a definite intention to take the COVID-19 vaccine (N = 3541).
| Univariable analysis | Multivariable logistic regression | ||||||
|---|---|---|---|---|---|---|---|
| Overal l N(%) |
Definitely yes n = 1018 |
Probably yes /Probably no/Definitely no n = 2523 |
Unadjusted OR (95% CI) |
p-value | Definitely yes vs. Probably yes/Probably no/Definitely no Adjusted OR (95% CI) |
p-value | |
| Demographics | |||||||
| Age group (years) | |||||||
| 18–25 | 642 (18.1) | 157 (24.5) | 485 (75.5) | Reference | |||
| 26–35 | 1673 (47.2) | 496 (29.6) | 1177 (70.4) | 1.30 (1.06–1.60) | 0.061 | ||
| 36–45 | 860 (24.3) | 252 (29.3) | 608 (70.7) | 1.28 (1.02–1.62) | |||
| 46–70 | 366 (10.3) | 113 (30.9) | 253 (69.1) | 1.38 (1.04–1.84) | |||
| Gender | |||||||
| Male | 1702 (48.1) | 469 (27.6) | 1233 (72.4) | Reference | 0.137 | ||
| Female | 1839 (51.9) | 549 (29.9) | 1290 (70.1) | 1.12 (0.97–1.30) | |||
| Marital status | |||||||
| Married | 2770 (78.2) | 831 (30.0) | 1939 (70.0) | 1.34 (1.11–1.61) | 0.002 | 1.21 (0.98–1.50) | 0.082 |
| Single | 771 (21.8) | 187 (24.3) | 584 (75.7) | Reference | Reference | ||
| Highest education level | |||||||
| High school and below | 1248 (35.2) | 359 (28.8) | 889 (71.2) | 1.00 (0.86–1.16) | 1.000 | ||
| Tertiary | 2293 (64.8) | 659 (28.7) | 1634 (71.3) | Reference | |||
| Occupation category | |||||||
| Professionals and managerial | 1591 (49.9) | 428 (26.9) | 1163 (73.1) | 1.29 (0.91–1.83) | 1.25 (0.84–1.87) | 0.276 | |
| Industrial workers | 423 (11.9) | 121 (28.6) | 302 (71.4) | 1.41 (0.95–2.08) | 1.27 (0.81–1.99) | 0.292 | |
| Self-employed | 416 (11.7) | 136 (32.7) | 280 (67.3) | 1.71 (1.16–2.52) | 0.003 | 1.66 (1.07–2.59) | 0.025 |
| Farmers | 127 (3.6) | 34 (26.8) | 93 (73.2) | 1.28 (0.77–2.15) | 1.21 (0.68–2.15) | 0.526 | |
| Service personnel | 413 (10.7) | 147 (35.6) | 266 (64.4) | 1.94 (1.32–2.86) | 1.61 (1.05–2.49) | 0.030 | |
| Housewife/ Retiree/ Unemployed | 368 (10.4) | 107 (29.1) | 261 (70.9) | 1.44 (0.97–2.15) | 1.25 (0.79–1.98) | 0.344 | |
| Student | 203 (5.7) | 45 (22.2) | 158 (77.8) | Reference | Reference | ||
| Average annual household income (CNY¥) | |||||||
| <50000 | 841 (23.8) | 256 (30.4) | 585 (69.6) | 1.01 (0.82–1.26) | |||
| 50001–120000 | 1341 (37.9) | 377 (28.1) | 964 (71.9) | 0.91 (0.74–1.11) | 0.262 | ||
| 120001–170000 | 646 (18.2) | 170 (26.3) | 476 (73.7) | 0.83 (0.65–1.05) | |||
| >170000 | 713 (20.1) | 215 (30.2) | 498 (69.8) | Reference | |||
| Location | |||||||
| Urban | 2997 (84.6) | 850 (28.4) | 2147 (71.6) | 1.13 (0.93–1.38) | 0.237 | ||
| Rural | 544 (15.4) | 168 (30.9) | 376 (69.1) | Reference | |||
| Current location | |||||||
| East | 1191 (33.6) | 333 (28.0) | 858 (72.0) | Reference | Reference | ||
| South | 417 (11.8) | 135 (32.4) | 282 (67.6) | 2.09 (1.38–3.19) | 1.24 (0.96–1.600 | 0.096 | |
| West | 164 (4.6) | 41 (25.0) | 123 (75.0) | 1.44 (0.95–2.16) | p<0.001 | 0.87 (0.59–1.29) | 0.487 |
| North | 1460 (41.2) | 382 (26.2) | 1078 (73.8) | 1.16 (0.80–170) | 0.94 (0.78–1.14) | 0.533 | |
| Central | 309 (8.7) | 127 (41.1) | 182 (58.9) | 1.06 (0.73–1.54) | 1.67 (1.26–2.18) | p<0.001 | |
| Experience with COVID-19 | |||||||
| Ever have experience with COVID-19 | |||||||
| No | 3301 (93.2) | 953 (28.9) | 2348 (71.1) | 1.09 (0.81–1.47) | 0.605 | ||
| Yes | 240 (6.8) | 65 (27.1) | 175 (72.9) | Reference | |||
| Health characteristics | |||||||
| Ever diagnosed with chronic diseases | |||||||
| Yes | 220 (6.2) | 55 (25.0) | 165 (75.0) | Reference | 0.219 | ||
| No | 3321 (93.8) | 963 (29.0) | 2358 (71.0) | 1.23 (0.90–1.68) | |||
| Perceived overall health | |||||||
| Very good | 1142 (32.3) | 397 (34.8) | 745 (65.2) | 1.57 (1.32–1.87) | 1.74 (1.44–2.09) | p<0.001 | |
| Good | 1132 (32.0) | 300 (26.5) | 832 (73.5) | 1.06 (0.89–1.28) | p<0.001 | 1.08 (0.89–1.31) | 0.423 |
| Fair/Poor/Very poor | 1267 (35.8) | 321 (25.3) | 946 (74.7) | Reference | Reference | ||
| Health belief | |||||||
| Perceived susceptibility | |||||||
| Chance of getting COVID-19 in the next few months is great | |||||||
| Strongly agree/agree | 1107 (31.3) | 271 (24.5) | 836 (75.5) | Reference | p<0.001 | Reference | |
| Disagree/strongly disagree | 2434 (68.7) | 747 (30.7) | 1687 (69.3) | 1.37 (1.16–1.61) | 1.01 (0.813–1.25) | 0.939 | |
| Worry about the likelihood of getting COVID 19 | |||||||
| Strongly agree/agree | 1528 (43.2) | 425 (27.8) | 1103 (72.2) | Reference | 0.294 | ||
| Disagree/strongly disagree | 2013 (56.8) | 593 (29.5) | 1420 (70.5) | 1.08 (0.94–1.26) | |||
| Getting COVID-19 is currently a possibility for me | |||||||
| Strongly agree/agree | 990 (28.0) | 235 (23.7) | 755 (76.3) | Reference | p<0.001 | Reference | |
| Disagree/strongly disagree | 2551 (72.0) | 783 (30.7) | 1768 (69.3) | 1.42 (1.20–1.69) | 1.26 (1.01–1.56) | 0.043 | |
| Perceived severity | |||||||
| Complications from COVID-19 are serious | |||||||
| Strongly agree/agree | 3065 (86.6) | 897 (29.3) | 2168 (70.7) | 1.21 (0.97–1.51) | |||
| Disagree/strongly disagree | 476 (13.4) | 121 (25.4) | 355 (74.6) | Reference | 0.091 | ||
| I will be very sick if I get COVID-19 | |||||||
| Strongly agree/agree | 2171 (61.3) | 627 (28.9) | 1544 (71.1) | 1.02 (0.88–1.18) | 0.849 | ||
| Disagree/strongly disagree | 1370 (38.7) | 391 (28.5) | 979 (71.5) | Reference | |||
| I am afraid of getting COVID-19 | |||||||
| Strongly agree/agree | 2984 (84.3) | 879 (29.5) | 2105 (70.5) | 1.26 (1.02–1.55) | 0.032 | 1.46 (1.14–1.87) | 0.003 |
| Disagree/strongly disagree | 557 (15.7) | 139 (25.0) | 418 (75.0) | Reference | Reference | ||
| Perceived benefits | |||||||
| Vaccination is a good idea because it makes me feel less worried about catching COVID-19 | |||||||
| Strongly agree/agree | 3089 (87.2) | 926 (30.0) | 2163 (70.0) | 1.68 (1.32–2.13) | p<0.001 | 1.39 (1.05–1.84) | 0.022 |
| Disagree/strongly disagree | 452 (12.8) | 92 (20.4) | 360 (79.6) | Reference | Reference | ||
| Vaccination decreases my chance of getting COVID-19 or its complications | |||||||
| Strongly agree/agree | 3277 (92.5) | 981 (29.9) | 2296 (70.1) | 2.62 (1.84–3.74) | 3.14 (2.05–4.83) | p<0.001 | |
| Disagree/strongly disagree | 264 (7.5) | 37 (14.0) | 227 (86.0) | Reference | p<0.001 | Reference | |
| Perceived barriers | |||||||
| Worry the possible side-effects of COVID-19 vaccination would interfere with my usual activities | |||||||
| Strongly agree/agree | 2425 (68.5) | 581 (24.0) | 1844 (76.0) | Reference | Reference | ||
| Disagree/strongly disagree | 1116 (31.5) | 437 (39.2) | 679 (60.8) | 2.04 (1.75–2.38) | p<0.001 | 1.52 (1.25–1.84 | p<0.001 |
| Concern about the efficacy of the COVID-19 vaccination | |||||||
| Strongly agree/agree | 2520 (71.2) | 600 (23.8) | 1920 (76.2) | Reference | p<0.001 | Reference | |
| Disagree/strongly disagree | 1021 (28.8) | 418 (40.9) | 603 (59.1) | 2.22 (1.90–2.59) | 1.65 (1.31–2.09) | p<0.001 | |
| Concern about the safety of the COVID-19 vaccination | |||||||
| Strongly agree/agree | 2569 (72.6) | 632 (24.6) | 1937 (75.4) | Reference | p<0.001 | Reference | |
| Disagree/strongly disagree | 972 (27.4) | 386 (39.7) | 586 (60.3) | 2.02 (1.73–2.36) | 1.21 (0.95–1.53) | 0.123 | |
| Concern of my affordability (high cost) of getting the COVID-19 vaccination | |||||||
| Agree | 2658 (75.1) | 720 (27.1) | 1938 (72.9) | Reference | p<0.001 | Reference | |
| Disagree | 883 (24.9) | 298 (33.7) | 585 (66.3) | 1.37 (1.16–1.62) | 0.97 (0.79–1.18) | 0.745 | |
| Concern if the faulty/fake COVID-19 vaccine | |||||||
| Strongly agree/agree | 2902 (82.0) | 803 (27.7) | 2099 (72.3) | Reference | 0.003 | Reference | |
| Disagree/strongly disagree | 639 (18.0) | 215 (33.6) | 424 (66.4) | 1.33 (1.10–1.59) | 0.94 (0.74–1.18) | 0.582 | |
| Cues to action | |||||||
| I will only take the COVID-19 vaccine if I was given adequate information about it | |||||||
| Strongly agree/agree | 3260 (92.1) | 937 (28.7) | 2323 (71.3) | Reference | 1.000 | ||
| Disagree/strongly disagree | 281 (7.9) | 81 (28.8) | 200 (71.2) | 1.00 (0.77–1.31) | |||
| I will only take the COVID-19 vaccine if the vaccine is taken by many in the public | |||||||
| Agree | 2914 (82.3) | 754 (25.9) | 2160 (74.1) | Reference | Reference | ||
| Disagree | 627 (17.7) | 264 (42.1) | 363 (57.9) | 2.08 (1.74–2.49) | p<0.001 | 1.88 (1.52–2.33) | p<0.001 |
Hosmer–Lemeshow test, chi-square: 2.275, p-value: 0.971; Nagelkerke R2: 0.127.