Fig. 4: Dynamic change of important determinants associated with vaccine uptake across P1-P4.

Numbers in the boxes are the absolute edge weights (standardised) over all variables’ parameters across the four periods. Variables were ranked by the sum value of each ___domain in P1. Greater absolute number indicates a stronger association with the uptake of the primary dose series or the booster dose of COVID-19 vaccines, while zero indicates no direct association. The signs of edge parameters were obtained from the interaction function in mgm, green colour denotes positive association and red denotes negative association with vaccination uptake. We used abbreviations for some variables in the figure to ease interpretation. The four variables in the Vaccine Confidence ___domain are: “Vac_safety”: COVID-19 vaccine is safe; “Vac_value”: COVID-19 vaccine is compatible with personal value; “Vac_important”: Taking COVID-19 vaccine is important; “Vac_effective”: COVID-19 vaccine is effective. The three variables in the Risk Perception ___domain are: “RP_worry”: Perceived worry of being infected with COVID-19; “RP_likelihood”: Perceived likelihood of being infected with COVID-19; “RP_severity”: Perceived severity of being infected with COVID-19.