Esther W. de Bekker?Grob|Bas Donkers|Michiel C.J. Bliemer|Jorien Veldwijk|Joffre Swait?
Can healthcare choice be predicted using stated preference data?
Erasmus University Rotterdam|Erasmus University Rotterdam|University of Sydney|Erasmus University Rotterdam|Erasmus University Rotterdam
lack evidence external validity discrete choice experiments dcessourced preferences inhibits greater use dces healthcare decisionmaking study examines external validity preferences unravels determinants provides evidence whether healthcare choice predictable focused influenza vaccination used sixstep approach literature study ii expert interviews iii focus groups iv survey including dce v field data vi indepth interviews respondents showed discordance stated choices actual healthcare utilization respondents without missing values survey actual healthcare utilization 377499 76 included analyses randomutilitymaximization randomregretminimization models used analyze dce data whereas indepth interviews combined five scientific theories explain discordance models took account scale preference heterogeneity realworld choices opt influenza vaccination correctly predicted dce aggregate level 91 choices correctly predicted individual level 13 49377 discordance stated choices actual healthcare utilization indepth interviews showed several dimensions played role clarifying discordance attitude social support action planning barriers intention evidence found dce yields accurate actual healthcare choice predictions least scale preference heterogeneity taken account analysis discordant subjects showed even better dce measures important part preferences focusing attribute tradeoffs people make decision participate healthcare intervention inhibitors may among attributes likely inhibitors exogenous factors like goals religion social norms conducting upfront work constraintsinhibitors focal behavior promotes behavior might improve predictive ability