Additional file 2 of Modifiable risk factors of vaccine hesitancy: insights from a mixed methods multiple population study combining machine learning and thematic analysis during the COVID-19 pandemic

Additional File 2: Table S1. Variables used in the data splitting procedure. Table S2: Hyperparameters and the values tested during tuning. The highlighted values are those that produced the best performing model. Table S3: The variables used in the independent sample replication in the UK dataset along with their corresponding variables in the Norwegian sample. Table S4: Proportion of vaccine hesitant individuals (n = 248 in Norway and n = 109 in UK) within different demographic subgroups. Table S5: Percentage of missingness among the variables with missing values across the vaccine hesitant and vaccine willing subgroups.