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. 2022 Aug 18;10(8):1349. doi: 10.3390/vaccines10081349

Table 2.

Previous similar or related systematic reviews on predictors of vaccine hesitancy/acceptance.

Previous Identified Similar/Related Reviews Covered Timeframe and Inclusion/Exclusion Criteria; Keywords and Number of Selected Studies Main Findings and Conclusions
(Wang et al., 2021) [19] A systematic review and meta-analysis Beginning of pandemic up to 4 November 2020
Inclusion criteria:
The types of included studies were not limited. Studies that did not involve COVID-19 vaccine acceptance or did not provide specific survey numbers for pooling were excluded.
Keywords: “COVID-19” OR “SARS-CoV-2” OR “novel coronavirus” OR “coronavirus disease 2019” AND “vaccin *” OR “immunization”, with (*) being used to automatically screen similar/derived words.
Number of selected studies: 38
The stronger predictors of COVID-19 vaccination willingness were gender, educational level, influenza vaccination history and trust in the government.
(Roy et al., 2022) [20]
Systematic review
Beginning of pandemic up to July 2021
Inclusion criteria:
(1) peer-reviewed published articles from electronic databases including PubMed (MEDLINE), Elsevier, Embase, Science Direct, Scopus and other reputable resources; (2) survey studies involving all types of sample populations; (3) the scope and principal aim of the study was to identify the potential factors influencing COVID-19 vaccine acceptance and hesitancy; (4) publication studies in the English language.
Keywords: “COVID-19 vaccine hesitancy” OR “COVID-19 vaccine hesitancy and associated factors” OR “COVID-19 vaccine confidence” OR “COVID-19 vaccine AND acceptance intention”.
Number of selected studies: 47
The most common predictors of vaccine acceptance were as follows: safety, efficacy, side effects, effectiveness and conspiracy beliefs (Asian countries); side effects, trust in vaccine and social influence (Europe) and information sufficiency, political roles and vaccine mandates (United States).

* is a bolean operator used in some browsers to automatically screen for related/derived words.