Table 2. Background Factors of Intention of COVID-19 Vaccination (Univariable Logistic Regression Analysis) .
| Behavioral Intention of Free COVID-19 Vaccination | Behavioral Intention of Self-paid COVID-19 Vaccination | |
| Likely/Definitely Yes | Likely/Definitely Yes | |
| ORc (95% CI) | ORc (95% CI) | |
| Studied province | ||
| Inner Mongolia | Ref = 1.0 | Ref = 1.0 |
| Henan | 1.44 (1.24-1.66)a | 0.86 (0.76-0.97)c |
| Zhejiang | 1.03 (0.86-1.22) | 0.85 (0.73-0.99)c |
| Yunnan | 1.55 (1.28-1.89)a | 1.05 (0.90-1.23) |
| Guangdong | 1.36 (1.08-1.70)b | 0.84 (0.70-1.01) |
| Gender | ||
| Female | Ref = 1.0 | Ref = 1.0 |
| Male | 0.86 (0.77-0.97)c | 0.92 (0.84-1.02) |
| Ethnicity | ||
| Else | Ref = 1.0 | Ref = 1.0 |
| Han | 1.17 (0.99-1.38) | 0.92 (0.80-1.06) |
| Faculty | ||
| Art; Social science; Economics and management | Ref = 1.0 | Ref = 1.0 |
| Science; Engineering | 0.92 (0.77-1.09) | 0.87 (0.75-1.00) |
| Medicine | 0.88 (0.76-1.02) | 0.97 (0.87-1.10) |
| Others | 0.80 (0.58-1.10) | 0.98 (0.75-1.30) |
| Grade | ||
| First year | Ref = 1.0 | Ref = 1.0 |
| Second year | 0.81 (0.70-0.93)b | 0.72 (0.64-0.81)a |
| Third year | 1.00 (0.84-1.18) | 0.79 (0.69-0.91)b |
| Fourth/fifth year | 0.78 (0.65-0.94)b | 0.75 (0.64-0.88)a |
| Postgraduate | 0.96 (0.58-1.59) | 0.89 (0.59-1.35) |
| Perceived risk | 1.00 (0.94-1.07) | 1.09 (1.04-1.15)b |
Abbreviations: ORc, crude odds ratios; Ref, reference group; COVID-19, coronavirus disease 2019.
a P < .001; bP < .01; cP < .05.