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Table 2 Levels of HBM constructs and acceptability of COVID-19 vaccine (N=911) (Line 234)

From: Predictors of COVID-19 vaccine acceptability among health professions students in Vietnam

HBM constructs Strongly Disagree (1 point)
N (%)
Disagree (2 points)
N (%)
Neutral (3 points)
N (%)
Agree (4 points)
N (%)
Strongly Agree (5 points)
N (%)
Perceived susceptibility
 1/ Unvaccinated students infected with SARS-CoV-2 during hospital internship 32 (3.5) 20 (2.2) 144 (15.8) 508 (55.8) 206 (22.6)
 2/ Possible spread of COVID-19 to family and others from HP students 28 (3.1) 60 (6.6) 195 (21.5) 491 (54.1) 123 (14.7)
 3/ The ease with which healthcare workers get COVID-19 from patient care 24 (2.6) 23 (2.5) 147 (16.2) 483 (53.3) 230 (25.4)
 4/ Feasible occurrence of adverse effect of the COVID-19 vaccine 29 (3.2) 154 (16.9) 188 (20.7) 467 (51.4) 71 (7.8)
Mean ± SD: 15.03 ± 2.54
Perceived severity
 5/ Those with chronic illnesses will die without the COVID-19 vaccine 29 (3.2) 122 (13.5) 282 (31.1) 389 (42.9) 84 (9.3)
 6/ Students get serious complications of COVID-19 if not vaccinated 25 (2.8) 51 (5.6) 187 (20.6) 512 (56.5) 131 (14.5)
Mean ± SD: 7.15 ± 1.46
Perceived barriers
 7/Vaccine not safe due to rapid research 17 (1.9) 211 (23.2) 420 (46.1) 211 (23.2) 52 (5.7)
 8/Difficult access tovaccination if not free 26 (2.9) 171 (18.9) 344 (37.9) 309 (34.1) 57 (6.3)
 9/Adverse effects of vaccine cause death 41 (4.5) 216 (23.8) 293 (32.2) 328 36.1) 31 (3.4)
 10/Current vaccine having little efficacy and serious adverse effects 39 (4.3) 259 (28.4) 394 (43.2) 190 (20.9) 29 (3.2)
Mean ± SD: 12.30 ± 2.64
Perceived benefits
 11/Vaccine effectively prevents the spread of the SARS-CoV-2 virus 41 (4.5) 26 (2.9) 176 (19.4) 528 (58.2) 136 (15)
 12/Immunization protecting me from getting coronavirus 25 (2.8) 41 (4.5) 197 (21.7) 499 (55.1) 144 (15.9)
Mean ± SD: 7.50 ± 1.46
Cues to actions
 13/ Health authorities ensure safe and effective vaccination 21 (2.3) 30 (3.3) 193 (21.3) 539 (59.4) 124 (13.7)
 14/ Mass media appreciate the effectiveness and safety of the Covid-19 vaccine 27 (3.0) 12 (1.3) 149 (16.4) 549 (60.5) 170 (18.7)
 15/ Manufacturers do not disclose information about the adverse effects of vaccines 23 (2.5) 171 (18.9) 417 (46) 253 (27.9) 42 (4.6)
Mean ± SD: 10.83 ± 1.67
Outcome variable: Vaccine acceptability
Do you accept to get vaccinated?
1.Yes 2. Need time to think again 3. No
Acceptance Hesitancy Refusal
N (%) N (%) N (%)
95% Confidence 95% Confidence Interval 95% Confidence
Interval (CI) (CI) Interval (CI)
525 (58.0%) 366 (40.4%) 14 (1.5%)
95% CI: 54.7% - 61.3% 95% CI: 37.2% - 43.7% 95% CI: 0.8% - 2.6%