Behaviorally informed digital campaigns and their association with social media engagement and COVID-19 vaccine uptake in Belize

Table 2 Associations of Facebook campaigns with vaccine uptake—first, second, and booster doses (all brands)

^*p < 0.1, ^**p < 0.05, ^***p < 0.01. OLS estimations with robust standard errors in parentheses. In (i) and (ii), the outcome variable of interest is the absolute number of first doses of the vaccine for all brands; in (iii) and (iv), the absolute number of second doses for all brands; and in (v) and (vi), the absolute number of booster shots for all brands. Columns (i), (iii) and (v) represent our reduced form specifications. In columns (ii), (iv), and (vi), we also included a set of controls and district fixed effects. All the coefficients associated with the campaigns are to be interpreted with the “It’s safe” campaign as a comparison. Controls included the absolute number of Reaches, an indicator variable that takes the number 1 if the campaign was run in English, the number of new COVID cases, the number of new COVID-related deaths, and the average number of days each campaign ran in each location

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