Table 2.
Measurement of the TPB constructs.
| Measures and sub-items of each measure | Mean | S/D | Frequency | Association of the construct subitem with Intention to have their children receive COVID-19 vaccination | Association of the construct with Intention to have their children receive COVID-19 vaccination | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Strongly disagree | Disagree | Not sure | Agree | Strongly agree | ||||||||||||
| n | % | n | % | n | % | n | % | n | % | Spearman's rho | P | Spearman's rho | P | |||
| Dependent variable—Intention | ||||||||||||||||
| “Based on my current knowledge about COVID-19 vaccines, I would give consent to vaccinating my child/children against COVID-19 infection.” | 3.29 | ±1.07 | 92 | 8 | 140 | 12 | 467 | 38 | 362 | 30 | 156 | 13 | ||||
| Independent variables—TPB constructs | ||||||||||||||||
| Construct 1—Attitude (Cronbach's alpha 0.881) | ||||||||||||||||
| “A COVID-19 vaccine will be important for my child/children's health.” | 3.45 | ±1.26 | 102 | 8.4 | 119 | 9.8 | 372 | 30.6 | 238 | 19.6 | 386 | 31.7 | 0.627** | 0.000 | 0.718** | 0.000 |
| “My child/children getting a COVID-19 vaccine would be a good way to protect him/her from COVID-19.” | 3.53 | ±1.28 | 123 | 10.1 | 113 | 9.3 | 345 | 28.3 | 273 | 22.4 | 363 | 29.8 | 0.653** | 0.000 | ||
| “A COVID-19 vaccine is effective if it is approved by the government.” | 3.26 | ±1.25 | 130 | 10.7 | 182 | 15.0 | 405 | 33.3 | 239 | 19.6 | 261 | 21.4 | 0.629** | 0.000 | ||
| “My child/children getting a COVID-19 vaccine will be important for the health of others in my community.” | 3.90 | ±1.15 | 52 | 4.3 | 92 | 7.6 | 289 | 23.7 | 281 | 23.1 | 503 | 41.3 | 0.603** | 0.000 | ||
| “A COVID-19 vaccine will not have been around long enough to be sure it is safe for children.” | 3.77 | ±1.22 | 84 | 6.9 | 80 | 6.6 | 336 | 27.6 | 254 | 20.9 | 463 | 38.0 | −0.467** | 0.000 | ||
| “I am concerned about serious side effects of a COVID-19 vaccine for my child/children.” | 3.96 | ±1.23 | 71 | 5.8 | 86 | 7.1 | 251 | 20.6 | 216 | 17.7 | 593 | 48.7 | −0.530** | 0.000 | ||
| “I think a COVID-19 vaccine might cause lasting health problems for my child/children.” | 3.54 | ±1.26 | 94 | 7.7 | 144 | 11.8 | 383 | 31.5 | 202 | 16.6 | 394 | 32.4 | −0.497** | 0.000 | ||
| Construct 2—Subjective norm (Cronbach's alpha 0.888) | ||||||||||||||||
| “My spouse would support me in having my child/children take up COVID-19 vaccination.” | 3.34 | ±1.38 | 186 | 15.3 | 130 | 10.7 | 327 | 26.9 | 235 | 19.3 | 339 | 27.9 | 0.696** | 0.000 | 0.724** | 0.000 |
| “My other family members would support me in having my child/children take up COVID-19 vaccination.” | 3.22 | ±1.30 | 169 | 13.9 | 155 | 12.7 | 404 | 33.2 | 223 | 18.3 | 266 | 21.9 | 0.682** | 0.000 | ||
| “My friends would support me in having my child/children take up COVID-19 vaccination.” | 3.11 | ±1.19 | 152 | 12.5 | 147 | 12.1 | 536 | 44.0 | 180 | 14.8 | 202 | 16.6 | 0.646** | 0.000 | ||
| “Many of my parent friends will have their child/children take up COVID-19 vaccination.” | 2.88 | ±1.20 | 185 | 15.2 | 242 | 19.9 | 486 | 39.9 | 139 | 11.4 | 165 | 13.6 | 0.585** | 0.000 | ||
| “The school expects the students to take up COVID-19 vaccination.” | 3.94 | ±1.15 | 68 | 5.6 | 49 | 4.0 | 292 | 24.0 | 290 | 23.8 | 518 | 42.6 | 0.404** | 0.000 | ||
| “The community expects the children to take up COVID-19 vaccination.” | 3.90 | ±1.19 | 74 | 6.1 | 58 | 4.8 | 306 | 25.1 | 260 | 21.4 | 519 | 42.6 | 0.400** | 0.000 | ||
| Construct 3—Perceive behavioral control (Cronbach's alpha 0.516) | ||||||||||||||||
| “Having my child/children receive COVID-19 vaccination is easy for me if I want them to.” | 3.93 | ±1.25 | 90 | 7.4 | 71 | 5.8 | 247 | 20.3 | 241 | 19.8 | 568 | 46.7 | 0.332** | 0.000 | 0.238** | 0.000 |
| “Having my child/children receive COVID-19 vaccination is too costly for me financially.” | 1.47 | ±0.98 | 930 | 76.4 | 111 | 9.1 | 118 | 9.7 | 12 | 1.0 | 46 | 3.8 | 0.032 | 0.261 | ||
| “I do not have time to take my child/children for COVID-19 vaccination.” | 1.64 | ±1.08 | 818 | 67.2 | 159 | 13.1 | 160 | 13.1 | 26 | 2.1 | 54 | 4.4 | 0.042 | 0.146 | ||
| “I believe that there is an adequate supply of COVID-19 vaccine for children in Macao.” | 4.48 | ±0.87 | 19 | 1.6 | 18 | 1.5 | 140 | 11.5 | 220 | 18.1 | 820 | 67.4 | 0.194** | 0.000 | ||
**p < 0.01.