Fig. 2.

Predictors of support for voluntary and enforced vaccinations in the second wave of the survey (A and B) and of changes in support between the two waves (C). Shown are the coefficients and 95% CI, estimated in ordinary least squares linear regressions with standardized variables (SI Appendix, Tables S3 and S4). The regression model for B is identical to the one for A, except that the two variables on effectiveness and freedom are included in B. C shows that a standard deviation (SD) decrease in public trust between the two waves is associated with a decline in support for enforced vaccination of 10% of a SD and a decline in support for voluntary vaccination of 5% of a SD. These estimates are unchanged if the effectiveness and freedom variables are excluded. Note that the scale of the horizontal axis is the same in A and B but differs for C. The two questions concerning attitudes towards the vaccine were asked only in the second wave.