Table 4.
Univariate logistic regression showing the relationship between students vaccinated against COVID-19 and various parameters.
| Parameter | n | COVID-19 Vaccinated, n (%) | PE | SE | p-Value | OR | 95% CI |
|---|---|---|---|---|---|---|---|
| Sex | |||||||
| Male | 277 | 164 (59.2) | 1.000 | ||||
| Female | 323 | 207 (64.1) | 0.207 | 0.169 | 0.220 | 1.230 | 0.884–1.711 |
| Place of residence | |||||||
| Village | 33 | 16 (48.5) | 1.000 | ||||
| City | 567 | 356 (62.8) | 0.644 | 0.365 | 0.078 | 1.903 | 0.931–3.890 |
| Ethnic group | |||||||
| Bulgarian | 556 | 340 (61.2) | 1.000 | ||||
| Turkish | 31 | 23 (74.2) | −0.602 | 0.420 | 0.151 | 1.826 | 0.803–4.157 |
| Marital status | |||||||
| Married and Family life without marriage | 45 | 23 (51.1) | 1.000 | ||||
| Boyfriend/girlfriend | 266 | 159 (59.8) | 0.352 | 0.323 | 0.277 | 1.421 | 0.754–2.679 |
| Single | 289 | 189 (65.4) | 0.592 | 0.323 | 0.067 | 1.808 | 0.960–3.404 |
| Smoking | |||||||
| Yes | 196 | 120 (61.2) | 1.000 | ||||
| No | 404 | 251 (62.1) | 0.038 | 0.179 | 0.831 | 1.039 | 0.732–1.475 |
| Alcohol consumption | |||||||
| Yes | 387 | 247 (63.8) | 1.000 | ||||
| No | 213 | 124 (58.2) | −0.236 | 0.175 | 0.176 | 0.790 | 0.561–1.112 |
| Information about COVID-19 vaccines from radio and TV | |||||||
| No | 284 | 183 (64.4) | 1.000 | ||||
| Yes | 316 | 188 (59.5) | −0.210 | 0.169 | 0.214 | 0.811 | 0.582–1.129 |
| Information about COVID-19 vaccines from YouTube, Vbox7, etc. | |||||||
| No | 402 | 253 (62.9) | 1.000 | ||||
| Yes | 198 | 118 (59.6) | −0.141 | 0.178 | 0.429 | 0.869 | 0.613–1.231 |
| Information about COVID-19 vaccines from Facebook, Twitter, Instagram, etc. | |||||||
| No | 384 | 247 (64.3) | 1.000 | ||||
| Yes | 216 | 124 (57.4) | −0.291 | 0.174 | 0.095 | 0.748 | 0.532–1.051 |
| Information about COVID-19 vaccines from news websites | |||||||
| No | 323 | 200 (61.9) | 1.000 | ||||
| Yes | 277 | 171 (61.7) | −0.008 | 0.169 | 0.963 | 0.992 | 0.713–1.381 |
| Information about COVID-19 vaccines from specialized literature (peer-reviewed journals, textbooks on the topic) | |||||||
| No | 266 | 146 (54.9) | 1.000 | ||||
| Yes | 334 | 225 (67.4) | 0.529 | 0.170 | 0.002 | 1.697 | 1.217–2.366 |
| Information about COVID-19 vaccines obtained by talking with friends and family | |||||||
| No | 166 | 110 (66.3) | 1.000 | ||||
| Yes | 434 | 261 (60.1) | −0.264 | 0.191 | 0.168 | 0.768 | 0.528–1.117 |
| Information about COVID-19 vaccines obtained by talking with GP or physician specialist | |||||||
| No | 204 | 114 (55.9) | 1.000 | ||||
| Yes | 396 | 257 (64.9) | 0.378 | 0.176 | 0.032 | 1.460 | 1.034–2.061 |
| Students know the peer-reviewed journals with IF in their professional field | |||||||
| I don’t know | 366 | 209 (57.1) | 1.000 | ||||
| 2–3 journals | 182 | 127 (69.8) | 0.551 | 0.193 | 0.004 | 1.735 | 1.188–2.532 |
| 7–8 journals | 37 | 26 (70.3) | 0.574 | 0.375 | 0.126 | 1.776 | 0.852–3.702 |
| >10 journals | 15 | 9 (60.0) | 0.119 | 0.538 | 0.824 | 1.127 | 0.393–3.231 |
| Attitude towards COVID-19 vaccines | |||||||
| Negative | 271 | 76 (28.0) | 1.000 | ||||
| Positive | 329 | 295 (89.7) | 3.103 | 0.226 | <0.001 | 22.262 | 14.295–34.670 |
| COVID-19 vaccines have been laboratory tested enough and sufficient scientific proof exists | |||||||
| No | 403 | 191 (47.4) | 1.000 | ||||
| Yes | 197 | 180 (91.4) | 2.464 | 0.273 | <0.001 | 11.752 | 6.887–20.054 |
| Manufacturers of COVID-19 vaccines hide information about the risks of vaccines’ administration | |||||||
| Yes | 374 | 172 (46.0) | 1.000 | ||||
| No | 226 | 199 (88.1) | 2.158 | 0.230 | <0.001 | 8.656 | 5.517–13.582 |
| Different governments and national health organizations hide information about the risks of vaccines’ application | |||||||
| Yes | 374 | 179 (47.9) | 1.000 | ||||
| No | 226 | 192 (85.0) | 1.817 | 0.213 | <0.001 | 6.152 | 4.053–9.338 |
| Trust the COVID-19 vaccines information shared by international health organizations (WHO, ECDC, etc.) | |||||||
| No | 302 | 106 (35.1) | 1.000 | ||||
| Yes | 298 | 265 (88.9) | 2.698 | 0.220 | <0.001 | 14.848 | 9.638–22.875 |
| Trust the COVID-19 vaccines information shared by national health organizations | |||||||
| No | 327 | 128 (39.1) | 1.000 | ||||
| Yes | 273 | 243 (89.0) | 2.533 | 0.224 | <0.001 | 12.593 | 8.114–19.544 |
| Would you vaccinate your child? | |||||||
| No | 376 | 159 (42.3) | 1.000 | ||||
| Yes | 224 | 212 (94.6) | 3.183 | 0.315 | <0.001 | 24.111 | 13.016–44.665 |
Note: PE—parameter estimate; SE—standard error; OR—odds ratio; CI—confidence interval.