Table 3.
Booster vaccine willingness, regression results.
| Sample: Primary Vaccination | Sample: Full | |||
|---|---|---|---|---|
| Estimate | 95% CI | Estimate | 95% CI | |
| Demographics | ||||
| 18–29 yrs | ref | ref | ref | ref |
| 30–39 yrs | −3.61 ** | −5.71; −1.52 | −3.55 * | −6.38; −0.73 |
| 40–49 yrs | 2.56 *** | 0.91; 4.21 | 6.31 *** | 3.69; 8.92 |
| 50–59 yrs | 4.57 *** | 3.29; 5.85 | 9.46 *** | 7.15; 11.77 |
| 60–69 yrs | 4.94 *** | 3.70; 6.18 | 10.30 *** | 8.03; 12.57 |
| 70+ yrs | 5.10 *** | 3.81; 6.40 | 11.17 *** | 8.99; 13.34 |
| Sex: male | ref | ref | ref | ref |
| Sex: female | −0.26 | −1.06; 0.54 | 0.13 | −1.14; 1.41 |
| Protection motivation | ||||
| Personal threat (2 sd) | 0.80 | −0.02; 1.63 | 2.07 ** | 0.73; 3.41 |
| Societal threat (2 sd) | 2.75 *** | 1.98; 3.52 | 9.52 *** | 8.14; 10.90 |
| Self-efficacy (2 sd) | 1.39 * | 0.33; 2.44 | 4.53 *** | 2.50; 6.56 |
| Response efficacy (2 sd) | 4.96 *** | 3.92; 6.00 | 15.44 *** | 13.28; 17.60 |
| Response cost (2 sd) | −2.62 *** | −3.47; −1.79 | −5.87 *** | −7.23; −4.52 |
| Constant | 93.58 *** | 92.03; 95.14 | 83.43 *** | 80.48; 86.38 |
| R2 | 0.07 | 0.23 | ||
| Observations | 27,402 | 28,257 | ||
Note: Unstandardized (weighted) OLS regression coefficients. * p < 0.05, ** p < 0.01, *** p < 0.001. 95% confidence intervals. Robust standard errors.