| Socio-demographic and educational characteristics | Vaccinated | p-value | |
| Yes N (%) | No n (%) | ||
| Age groups | |||
| <23 years old | 139 (49.64) | 141 (50.36) | 0.742 |
| ≥23 years old | 151 (51.01) | 145 (48.99) | |
| Sex | |||
| Female | 155 (46.55) | 178 (53.45) | 0.033 |
| Male | 135 (55.56) | 108 (44.44) | |
| Subsidiaries | |||
| Medicine | 187 (49.08) | 194 (50.92) | 0.216 |
| Pharmacy | 63 (48.84) | 66 (51.16) | |
| Dental | 40 (60.61) | 26 (39.39) | |
| Studylevel | |||
| Bachelor’s degree | 117 (48.35) | 125 (51.65) | 0.699 |
| Master | 87 (51.18) | 83 (48.82) | |
| Doctorate | 86 (52.44) | 78 (47.56) | |
| Level of knowledge about COVID-19 | |||
| Nature of the virus | |||
| Good | 118 (56.73) | 90 (43.27) | 0.021 |
| Poor | 196 (53.26) | 172 (46.74) | |
| Virus incubation period | |||
| Good | 232 (50.43) | 228 (49.57) | 0.933 |
| Poor | 58 (50) | 58 (50) | |
| Disease transmission | |||
| Good | 235 (50.98) | 226 (49.02) | 0.651 |
| Fair | 40 (45.98) | 47 (54.02) | |
| Poor | 15 (53.57) | 13 (46.43) | |
| Diseasesymptoms | |||
| Good | 273 (51.03) | 262 (48.97) | 0.0343 |
| Fair | 15 (53.57) | 13 (46.43) | |
| Poor | 2 (15.38) | 11 (84.62) | |
| Diseasepreventionmeasures | |||
| Good | 287 (50.26) | 284 (49.74) | 0.496 |
| Fair | 3 (75) | 1 (25) | |
| Poor | 0 | 1 (100) | |
| People most at risk of disease | |||
| Good | 221 (53.64) | 191 (46.36) | 0.0379 |
| Fair | 54 (43.20) | 71 (56.80) | |
| Poor | 15 (38.46) | 24 (61.54) | |
| Existence of specifictreatment | |||
| Good | 144 (51.80) | 134 (48.20) | 0.501 |
| Poor | 146 (48.99) | 152 (51.01) | |
| Perception of COVID-19’s hazardousness | |||
| Not dangerous | 13 (27.08) | 35 (72.92) | 0.003 |
| More or less dangerous | 173 (52.42) | 157 (47.58) | |
| Very dangerous | 104 (52.52) | 94 (47.48) | |
| Types of vaccine against COVID-19 | |||
| Good | 68 (57.63) | 50 (42.37) | 0.0129 |
| Fair | 79 (56.83) | 60 (43.17) | |
| Poor | 143 (44.83) | 176 (55.17) | |
| Vaccines against COVID-19 | |||
| Good | 211 (58.61) | 149 (41.39) | <0.001 |
| Fair | 72 (49.32) | 74 (50.68) | |
| Poor | 7 (10) | 63 (90) | |
| Vaccination targets | |||
| Good | 286 (51.81) | 266 (48.19) | 0.0021 |
| Fair | 1 (9.09) | 10 (90.91) | |
| Poor | 3 (23.08) | 10 (76.92) | |
| Vaccination sideeffects | |||
| Good | 110 (53.40) | 96 (46.60) | <0.001 |
| Fair | 114 (57.29) | 85 (42.71) | |
| Poor | 66 (38.60) | 105 (61.40) | |
| Vaccination contraindications | |||
| Good | 187 (57.01) | 141 (42.99) | <0.001 |
| Fair | 64 (47.06) | 72 (52.94) | |
| Poor | 39 (34.82) | 73 (65.18) | |