Table 3.

Definitions of trust across reviewed literature.

	Trust was not explicitly defined	Hints made towards trust concepts mentioned in the literature	Trust defined through extensive use of trust literature.
Vaccine uptake	Cheng et al (2010)39	Casiday et al (2006)38	Ronnerstrand (2013)57
	Das & Das (2003)42	Gilles et al (2011)47
	Fowler et al (2006)43	Lee et al (2016)50
	Fu et al (2017)46
	Manika et al (2014)51
	Kolar et al (2015)49
Intention to vaccinate	Marlow et al (2007)52		Taylor-Clark et al (2006)59
	Scherer et al (2016)58		Weerd et al (2011)62
	Tucker-Edmonds et al (2011)60		Chuang et al (2015)40
Predictors of trust in relation to vaccination	Berry et al (2012)37	Won et al (2015)63	Freimuth et al (2017)45
	Cooper et al (2017)41		Quinn, Jamison, Freimuth, An, Hancock & Musa (2016)55
	Freed et al (2011)44
	Grabenstein et al (2002)48
	Wu et al (2008)64
	Moran et al (2015)54
	Wada & Smith (2015)61
HCP intention to recommend vaccine	McPhillips et al (2016)53
	Raude et al (2016)56
Qualitative research	Harris et al (2006)67	Hilton, Petticrew & Hunt (2007)68	Brownlie & Howson (2006)65
		King & Leask (2017)69	Bunton & Gilding (2013)66
			Senier & Senier (2016)70
			Quinn, Jamison, Musa, Hilyard & Freimuth (2016)71