Table 2.
Comparison of COVID-19 vaccination intention and perception among respondents with different age and NCD status, (%, 95% CI)
| Items | Adults aged 18–59 |
The elderly aged 60 and above |
p-valuea | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Total sample (n = 3928) |
NCD status |
Total sample (n = 3331) |
NCD status |
||||||
| No (n = 3415) |
Yes (n = 513) |
p-valueb | No (n = 1467) |
Yes (n = 1864) |
p-valueb | ||||
| COVID-19 vaccination intention | 0.001 | 0.44 | <0.001 | ||||||
| Yes | 84.75 (83.63, 85.87) | 85.48 (84.30, 86.66) | 79.92 (76.45, 83.39) | 79.08 (77.70, 80.46) | 79.69 (77.63, 81.75) | 78.59 (76.73, 80.45) | |||
| Unsure or no | 15.25 (14.13, 16.37) | 14.52 (13.34, 15.70) | 20.08 (16.61, 23.55) | 20.92 (19.54, 22.30) | 20.31 (18.25, 22.37) | 21.41 (19.55, 23.27) | |||
| Complacency measures | |||||||||
| Perceived risk of COVID-19 infection | 0.16 | 0.034 | <0.001 | ||||||
| High | 30.50 (29.06, 31.94) | 30.89 (29.34, 32.44) | 27.88 (24.00, 31.76) | 23.78 (22.33, 25.23) | 22.02 (19.90, 24.14) | 25.16 (23.19, 27.13) | |||
| Fair or low | 69.50 (68.06, 70.94) | 69.11 (67.56, 70.66) | 72.12 (68.24, 76.00) | 76.22 (74.77, 77.67) | 77.98 (75.86, 80.10) | 74.84 (72.87, 76.81) | |||
| Perceived severity of COVID-19 diseases | 0.76 | 0.172 | <0.001 | ||||||
| High | 83.50 (82.34, 84.66) | 83.57 (82.33, 84.81) | 83.04 (79.79, 86.29) | 79.74 (78.38, 81.10) | 21.34 (19.24, 23.44) | 19.42 (17.62, 21.22) | |||
| Fair or low | 16.50 (15.34, 17.66) | 16.43 (15.19, 17.67) | 16.96 (13.71, 20.21) | 20.26 (18.9, 21.62) | 78.66 (76.56, 80.76) | 80.58 (78.78, 82.38) | |||
| Importance of COVID-19 vaccination for myself | 0.008 | 0.382 | <0.001 | ||||||
| Important | 86.05 (84.97, 87.13) | 86.62 (85.48, 87.76) | 82.26 (78.95, 85.57) | 79.41 (78.04, 80.78) | 80.10 (78.06, 82.14) | 78.86 (77.01, 80.71) | |||
| Fair or not important | 13.95 (12.87, 15.03) | 13.38 (12.24, 14.52) | 17.74 (14.43, 21.05) | 20.59 (19.22, 21.96) | 19.90 (17.86, 21.94) | 21.14 (19.29, 22.99) | |||
| Importance of COVID-19 vaccination for others (e.g. family, friends, neighbors) | 0.001 | 0.044 | <0.001 | ||||||
| Important | 87.63 (86.60, 88.66) | 88.29 (87.21, 89.37) | 83.24 (80.01, 86.47) | 81.15 (79.82, 82.48) | 82.69 (80.75, 84.63) | 79.94 (78.12, 81.76) | |||
| Fair or not important | 12.37 (11.34, 13.40) | 11.71 (10.63, 12.79) | 16.76 (13.53, 19.99) | 18.85 (17.52, 20.18) | 17.31 (15.37, 19.25) | 20.06 (18.24, 21.88) | |||
| Confidence measures | |||||||||
| Perceived safety of COVID-19 vaccines | 0.194 | 0.47 | 0.058 | ||||||
| Safe | 65.05 (63.56, 66.54) | 65.56 (63.97, 67.15) | 61.60 (57.39, 65.81) | 63.58 (61.95, 65.21) | 62.44 (59.96, 64.92) | 64.48 (62.31, 66.65) | |||
| Unsure | 31.01 (29.56, 32.46) | 30.60 (29.05, 32.15) | 33.72 (29.63, 37.81) | 33.17 (31.57, 34.77) | 34.22 (31.79, 36.65) | 32.35 (30.23, 34.47) | |||
| Not safe | 3.95 (3.34, 4.56) | 3.84 (3.20, 4.48) | 4.68 (2.85, 6.51) | 3.24 (2.64, 3.84) | 3.34 (2.42, 4.26) | 3.17 (2.37, 3.97) | |||
| Perceived effectiveness of COVID-19 vaccines | 0.72 | 0.263 | 0.036 | ||||||
| Effective | 68.30 (66.84, 69.76) | 68.43 (66.87, 69.99) | 67.45 (63.40, 71.50) | 65.51 (63.90, 67.12) | 64.01 (61.55, 66.47) | 66.68 (64.54, 68.82) | |||
| Unsure | 29.43 (28.00, 30.86) | 29.37 (27.84, 30.90) | 29.82 (25.86, 33.78) | 32.21 (30.62, 33.80) | 33.54 (31.12, 35.96) | 31.17 (29.07, 33.27) | |||
| Not effective | 2.27 (1.80, 2.74) | 2.20 (1.71, 2.69) | 2.73 (1.32, 4.14) | 2.28 (1.77, 2.79) | 2.45 (1.66, 3.24) | 2.15 (1.49, 2.81) | |||
| Trust in health workers regarding vaccination information and suggestions | <0.001 | 0.28 | <0.001 | ||||||
| Trust | 90.17 (89.24, 91.10) | 91.04 (90.08, 92.00) | 84.41 (81.27, 87.55) | 84.93 (83.72, 86.14) | 85.69 (83.90, 87.48) | 84.33 (82.68, 85.98) | |||
| Fair or not trust | 9.83 (8.90, 10.76) | 8.96 (8.00, 9.92) | 15.59 (12.45, 18.73) | 15.07 (13.86, 16.28) | 14.31 (12.52, 16.10) | 15.67 (14.02, 17.32) | |||
| Trust in governments regarding vaccination information and suggestions | 0.004 | 0.82 | <0.001 | ||||||
| Trust | 89.59 (88.63, 90.55) | 90.13 (89.13, 91.13) | 85.96 (82.95, 88.97) | 85.05 (83.84, 86.26) | 85.21 (83.39, 87.03) | 84.92 (83.3, 86.54) | |||
| Fair or not trust | 10.41 (9.45, 11.37) | 9.87 (8.87, 10.87) | 14.04 (11.03, 17.05) | 14.95 (13.74, 16.16) | 14.79 (12.97, 16.61) | 15.08 (13.46, 16.7) | |||
aComparison of the difference between two age groups on COVID-19 vaccination intention and perception measures by Chi-square tests.
bComparison of the difference between respondents with or without NCD on vaccination intention and perception measures in two age groups, respectively, by Chi-square tests.