Table 4 Respondents’ preferences for HPV vaccination based on a panel mixed logit model [N = 294]
Attributes | Coefficient | |||
|---|---|---|---|---|
Value | (95% CI) | |||
Constant (vaccination) | Mean | -3.18 | ***a | (-4.50 to -1.86) |
S.D. | 9.26 | *** | (7.62 to 10.9) | |
Degree of protection against cervical cancer (per 10%) | Mean | 1.18b | *** | (0.99 to 1.36) |
S.D. | 0.75 | *** | (0.60 to 0.90) | |
Duration of protection 6 years (omitted)c | Mean | -2.37 | *** | (-2.72 to -2.03) |
S.D. | 1.46 | *** | (1.41 to 1.51) | |
Duration of protection 25 years | Mean | 0.56 | *** | (0.40 to 0.72) |
S.D. | 0.36 | *** | (0.10 to 0.62) | |
Duration of protection lifetime | Mean | 1.81 | *** | (1.51 to 2.11) |
S.D. | 1.42 | *** | (1.14 to 1.70) | |
1/750,000 risk of serious side effects (omitted)c | Mean | 3.04 | *** | (2.54 to 3.55) |
S.D. | 3.18 | *** | (2.98 to 3.38) | |
1/150,000 risk of serious side effects | Mean | 0.62 | *** | (0.37 to 0.86) |
S.D. | 0.70 | *** | (0.42 to 0.98) | |
1/30,000 risk of serious side effects | Mean | -3.66 | *** | (-3.06 to -4.25) |
S.D. | 3.11 | *** | (2.45 to 3.77) | |
Vaccination at age 9 years (omitted)c | Mean | -0.65 | *** | (-0.86 to -0.44) |
S.D. | 0.32 | *** | (0.30 to 0.33) | |
Vaccination at age 12 years | Mean | 0.11 | (-0.06 to 0.29) | |
S.D. | 0.29 | *** | (0.10 to 0.48) | |
Vaccination at age 14 years | Mean | 0.54 | *** | (0.36 to 0.72) |
S.D. | 0.29 | *** | (0.10 to 0.48) | |
Model fits | ||||
Log-Likelihood function | -1205.62 | |||
Akaike information criterion | 0.93 | |||
Bayesian information criterion | 0.96 | |||
Pseudo R-squared | 0.58 | |||