Table 4.
Predictors of COVID‐19 vaccine acceptance among medical students by logistic regression analysis
| Predictor Variable | B | Wald | Sig. | Exp(B) | 95% CI for EXP (B) | |
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Age | −0.064 | 1.057 | 0.304 | 0.938 | 0.831 | 1.060 |
| Sex: Men #Ref. | ||||||
| Women | 0.140 | 1.821 | 0.177 | 1.150 | 0.939 | 1.409 |
| College: Medicine #Ref. | ||||||
| Physical medicine | 0.323 | 2.249 | 0.134 | 1.381 | 0.906 | 2.105 |
| Dentistry | 0.269 | 1.501 | 0.221 | 1.308 | 0.851 | 2.010 |
| Nursing | 0.030 | 0.015 | 0.903 | 1.030 | 0.639 | 1.661 |
| Pharmacy | 0.817 | 9.470 | 0.002* | 2.264 | 1.345 | 3.809 |
| Year: Freshman #Ref. | ||||||
| Sophomore | −1.025 | 5.124 | 0.024* | 0.359 | 0.148 | 0.872 |
| Junior | −0.874 | 4.747 | 0.029* | 0.417 | 0.190 | 0.916 |
| Senior | −1.034 | 7.816 | 0.005* | 0.356 | 0.172 | 0.734 |
| Graduate | −0.733 | 6.397 | 0.011* | 0.480 | 0.272 | 0.848 |
| Socioeconomic status: Low #Ref. | ||||||
| Average | −0.242 | 0.881 | 0.348 | 0.785 | 0.474 | 1.301 |
| High | −0.001 | 0.000 | 0.998 | 0.999 | 0.487 | 2.049 |
| Prefer not to disclose | −0.029 | 0.016 | 0.900 | 0.972 | 0.620 | 1.523 |
| Family income: Not enough #Ref. | ||||||
| Enough but no saving | 0.085 | 0.181 | 0.671 | 1.089 | 0.736 | 1.611 |
| Enough and saving | 0.161 | 2.073 | 0.150 | 1.174 | 0.944 | 1.462 |
| Self‐perception of own health status: Very bad #Ref. | ||||||
| Bad | 0.179 | 0.121 | 0.728 | 1.196 | 0.436 | 3.279 |
| Average | −0.681 | 5.196 | 0.023* | 0.506 | 0.282 | 0.909 |
| Good | −0.392 | 6.488 | 0.011* | 0.675 | 0.499 | 0.913 |
| Very good | −0.310 | 5.507 | 0.019* | 0.733 | 0.566 | 0.950 |
| Self‐rated COVID‐19 knowledge level: Very bad #Ref. | ||||||
| Bad | −0.486 | 0.887 | 0.346 | 0.615 | 0.224 | 1.691 |
| Average | −0.150 | 0.324 | 0.569 | 0.861 | 0.514 | 1.442 |
| Good | −0.459 | 6.532 | 0.011* | 0.632 | 0.444 | 0.898 |
| Very good | −0.339 | 3.651 | 0.056 | 0.713 | 0.504 | 1.009 |
| Previous infection with COVID‐19: I do not know #Ref. | ||||||
| Yes & confirmed | −0.003 | 0.001 | 0.981 | 0.997 | 0.778 | 1.278 |
| Yes, but not confirmed | −0.164 | 0.430 | 0.512 | 0.849 | 0.521 | 1.384 |
| Not infected | −0.141 | 0.994 | 0.319 | 0.868 | 0.658 | 1.146 |
| COVID‐19 infection in close social network: I do not know #Ref. | ||||||
| Yes & confirmed | −0.618 | 9.616 | 0.002* | 0.539 | 0.365 | 0.797 |
| Yes, but not confirmed | −0.110 | 0.740 | 0.390 | 0.895 | 0.696 | 1.152 |
| Not infected | −0.296 | 3.357 | 0.067 | 0.744 | 0.542 | 1.021 |
| Previous seasonal influenza vaccination: Never #Ref. | ||||||
| Last year | −0.480 | 2.822 | 0.093 | 0.619 | 0.354 | 1.083 |
| Current flu season (2020–2021) | −0.168 | 0.235 | 0.628 | 0.845 | 0.428 | 1.669 |
| Annually | 0.015 | 0.001 | 0.970 | 1.016 | 0.456 | 2.263 |
| Risk perception percentage of getting COVID‐19 infection: 0‐#Ref. | ||||||
| 20 | −0.402 | 1.948 | 0.163 | 0.669 | 0.380 | 1.177 |
| 40 | −0.315 | 2.156 | 0.142 | 0.730 | 0.479 | 1.111 |
| 60 | 0.027 | 0.047 | 0.829 | 1.027 | 0.805 | 1.311 |
| >80 | −0.025 | 0.042 | 0.837 | 0.975 | 0.767 | 1.239 |
*
Significant.
The dependent variable is vaccine acceptance (definitely accept and accept with some hesitancy) versus (definitely refuse, refuse with some hesitancy and hesitant responses) #Ref. Reference category.