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Table 1 General study characteristics of included studies

From: Vaccine preferences driving vaccine-decision making of different target groups: a systematic review of choice-based experiments

Aspect Specification Number of studies (%)
Choice based experiment ADCE 1 (2.4)
CA 10 (23.8)
DCE 31 (73.8)
Year of publication 2000–2005 2 (4.8)
2006–2010 3 (7.1)
2011–2015 19 (45.2)
2016–2020 (September) 18 (42.9)
Target groupa Health advisors 4 (9.5)
Representatives 20 (47.9)
Vaccinees 15 (35.7)
Vaccinees & representatives 3 (7.1)
Objectiveb Assess preferences vaccines, vaccine attributes, vaccine programs 36 (85.7)
Compare individual DCE 1 (2.4)
Compare RP with SP 1 (2.4)
Estimate WTP 15 (35.7)
Explore variation in preferences across groups 8 (19.0)
External factors influencing preferences 6 (14.3)
Identify reason(s) not to vaccinate 1 (2.4)
Predict vaccine uptake/coverage 11 (26.2)
Policy recommendations design and/or communication of vaccine programs/strategies 10 (23.8)
Trade-off vaccine attributes 6 (14.3)
  1. aDue to rounding of percentages, the total may not count up to 100%; bAs 32 studies included more than objective, the total number of studies exceeds the total amount of included studies (and 100%)