Table 3.
Mixed logit model results for a discrete choice experiment addressing adults’ preferences for HBV vaccination.
| Model 1 | Model 2 | |
|---|---|---|
| Constant | 7.558(0.830) *** | 6.990(1.467) *** |
| Attribute | ||
| Out-of-pocket cost | −0.010(0.003) *** | −0.010(0.003) *** |
| Risk of side-effects (ref. = 1/50,000) | ||
| 1/100,000 | 0.215(0.096) * | 0.226(0.097) * |
| 1/150,000 | 0.418(0.097) *** | 0.415(0.092) *** |
| Protection duration (ref. = 5 years) | ||
| 10 years | 0.109(0.096) | 0.110(0.095) |
| 20 years | 0.456(0.095) *** | 0.439(0.092) *** |
| Protection rate (ref. = 79%) | ||
| 89% | 0.363(0.096) *** | 0.365(0.094) *** |
| 99% | 0.993(0.107) *** | 0.977(0.103) *** |
| Socioeconomic factors | ||
| Neither × Male | 0.311(0.668) | |
| Neither × Age 40+ | −3.079(0.799) *** | |
| Neither × High education | 0.290(0.822) | |
| Neither × Income 2000 RMB+ | 0.344(0.892) | |
| Neither × Good health status | −0.235(0.511) | |
| Neither × High risk of infection | −1.070(0.580) | |
| Neither × Perceived moderate severity | −0.229(0.695) | |
| Neither × Perceived high severity | −1.738(0.656) ** | |
| Behavioral factors | ||
| Neither × Lower risk aversion | 2.049(0.497) *** | |
| Neither × Lower time discount rate | −1.185(0.594) * | |
| Neither × Non-overconfidence degree | −1.166(0.558) * |
Notes: Standard errors in parentheses. *** p <0.001, ** p <0.01, * p <0.05.