Table 5 Panel mixed logit model estimates of the ‘child’ model: mean and standard deviation (std dev) and significance of the attribute effects obtained from likelihood ratio (LR) tests with specified number of degrees of freedom (DF)
Term | Mean estimate (std dev; subject std dev) | 95% CI | Marginal utility | LR Chi-square | DF | P-value |
|---|---|---|---|---|---|---|
Vaccine effectiveness | ||||||
50% | −0.970 (0.047; 0.366) | [−1.070; −0.888] | −0.9701 | 382.034 | 1 | <.0001 |
90% | 0.970 (0.056; 0.380) | [0.861; 1.079] | 0.9701 | |||
Burden of disease | ||||||
Rare&mild | −1.507 (0.154; 0.377) | [−1.811; −1.198] | −1.5066 | 405.516 | 3 | <.0001 |
Common&mild | −0.969 (0.105; 0.311) | [−1.179; −0.761] | −0.9686 | |||
Rare&severe | 0.683 (0.099; 0.175) | [0.458; 0.842] | 0.6831 | |||
Common&severe | 1.792 (0.108; 0.506) | [1.580; 2.004] | 1.7921 | |||
Mild VRSE | ||||||
Common | −0.518 (0.055; 0.116) | [−0.637; −0.417] | −0.5175 | 40.569 | 1 | <.0001 |
Rare | 0.518 (0.071; 0.120) | [0.379; 0.656] | 0.5175 | |||
Accessibility | ||||||
Co-payment prescription | −0.971 (0.059; 0.177) | [−1.098; −0.870] | −0.9713 | 154.293 | 1 | <.0001 |
Free accessible | 0.971 (0.092; 0.172) | [0.791; 1.152] | 0.9713 | |||
Local coverage (× 10%) | 0.115 (0.016; 0.172) | [0.084; 0.146] | 0.1147 | 47.791 | 1 | <.0001 |
Global coverage (×10%) | 0.112 (0.013; 0.141) | [0.086; 0.139] | 0.1119 | 49.112 | 1 | <.0001 |
Mild VRSE*Local coverage | ||||||
Common*Local coverage | 0.041 (0.010; 0.051) | [0.024; 0.061] | 0.0412 | 13.527 | 1 | 0.0002 |
Rare*Local coverage | −0.041 (0.012; 0.052) | [−0.064; −0.018] | −0.0412 | |||
Accessibility*Local coverage | ||||||
Co-payment*local | 0.044 (0.009; 0.080) | [0.028; 0.063] | 0.0444 | 20.147 | 1 | <.0001 |
Free*local | −0.044 (0.014; 0.085) | [−0.072; −0.017] | −0.0444 | |||
Burden of disease*Risk of flu next 12 month (Low vs. high) | ||||||
Rare&mild*High | −0.260 (0.112; 0.378) | [−0.471; −0.047] | −1.7664 | 19.799 | 3 | 0.0002 |
Common&mild*High | −0.155 (0.093; 0.303) | [−0.371; 0.007] | −1.1238 | |||
Rare&severe*High | −0.003 (0.086; 0.156) | [−0.186; 0.145] | 0.6803 | |||
Common&severe*High | 0.418 (0.094; 0.367) | [0.234; 0.602] | 2.2098 | |||
Rare&mild*Low | 0.260 (0.104; 0.489) | [0.057; 0.463] | −1.2469 | |||
Common&mild*Low | 0.155 (0.093; 0.245) | [−0.028; 0.338] | −0.8134 | |||
Rare&severe*Low | 0.003 (0.098; 0.216) | [−0.189; 0.194] | 0.6859 | |||
Common&severe*Low | −0.418 (0.094; 0.601) | [−0.602; −0.233] | 1.3744 | |||
Burden of disease*Information via internet (other than social media) | ||||||
Rare&mild*No | 0.427 (0.099; 0.475) | [0.251; 0.625] | −1.0800 | 18.541 | 3 | 0.0003 |
Common&mild*No | 0.007 (0.083; 0.256) | [−0.143; 0.184] | −0.9611 | |||
Rare&severe*No | −0.048 (0.075; 0.183) | [−0.182; 0.113] | 0.6346 | |||
Common&severe*No | −0.386 (0.096; 0.416) | [−0.575; −0.196] | 1.4066 | |||
Rare&mild*Yes | −0.427 (0.111; 0.296) | [−0.645; −0.208] | −1.9332 | |||
Common&mild*Yes | −0.007 (0.082; 0.189) | [−0.167; 0.152] | −0.9760 | |||
Rare&severe*Yes | 0.048 (0.086; 0.204) | [−0.120; 0.217] | 0.7316 | |||
Common&severe*Yes | 0.386 (0.094; 0.306) | [0.202; 0.569] | 2.1777 | |||