Fig. 2: Weighted proportion of vaccine uptake by number of doses completed across 17 survey weeks and the four divided periods of the study (N = 15,179).

Bar graph illustrating the proportions of the first dose/second dose/third dose of vaccine uptake, weighted to the adult population based on Hong Kong census data in 2021, with 95% confidence interval ± about 3%. 95%CI was calculated with the normal approximation. The below horizontal bar shows the period, specific dates, and sample size for each survey wave.