Table 2. Final model of factors associated with and willingness-to-pay for a hypothetical Ebola vaccine (N=288).
| Parameter | N (%) | Unstandardized coefficients | US$ estimate | P-value | |||||
|---|---|---|---|---|---|---|---|---|---|
| B | 95% CI of B | SE | Mean | 95% CI | |||||
| Lower | Upper | Lower | Upper | ||||||
| Intercept | 1.478 | 0.908 | 2.048 | 0.290 | 5.944 | 4.408 | 7.479 | <0.001 | |
| Age group (years) (Ref: 17–29) | |||||||||
| 30–44 | 147 (51.0) | -0.311 | -0.546 | -0.077 | 0.119 | 0.993 | -0.543 | 2.528 | 0.009 |
| ≥45 | 73 (25.3) | -0.299 | -0.580 | -0.019 | 0.142 | 1.005 | -0.531 | 2.540 | 0.036 |
| Education
(Ref: Less than junior
high school) |
|||||||||
| Senior high school | 136 (47.2) | 0.245 | 0.031 | 0.458 | 0.109 | 1.731 | 0.195 | 3.266 | 0.025 |
| Graduated | 40 (13.9) | 0.544 | 0.191 | 0.897 | 0.179 | 2.335 | 0.799 | 3.870 | 0.003 |
| Occupation (Ref: Farmer) | |||||||||
| Private employee | 24 (8.3) | 0.661 | 0.285 | 1.037 | 0.191 | 2.625 | 1.090 | 4.161 | 0.001 |
| Entrepreneur | 72 (25.0) | 0.319 | 0.085 | 0.552 | 0.119 | 1.864 | 0.329 | 3.400 | 0.008 |
| Civil servant | 48 (16.7) | 0.563 | 0.225 | 0.901 | 0.172 | 2.379 | 0.844 | 3.914 | 0.001 |
| Marital status (Ref: Unmarried) | |||||||||
| Married | 278 (96.5) | -0.868 | -1.398 | -0.337 | 0.269 | 0.569 | -0.966 | 2.105 | 0.001 |
| Urbanicity (Ref: Suburb) | |||||||||
| City | 41 (14.2) | -0.552 | -0.882 | -0.221 | 0.168 | 0.781 | -0.755 | 2.316 | 0.001 |
| Knowledge of Ebola (Ref: Poor) | |||||||||
| Good | 92 (31.9) | -0.206 | -0.421 | 0.008 | 0.109 | 1.103 | -0.433 | 2.638 | 0.059 |
| Mean squared error | 0.608 | ||||||||
| F value | 7.417 (P<0.001) | ||||||||
| R 2 | 0.211 | ||||||||
CI, confidence interval; IDR, Indonesia rupiah; US$, American dollar; SE, standard error; Ref, reference group.