Supporting Informed Decision Making for Prostate Specific Antigen (PSA) Testing on the Web: An Online Randomized Controlled Trial

Rhodri Evans ^{1

†} , BA BM BCh ;   Natalie Joseph-Williams ^{1

†} , BA(Hons) PDipPsych ;   Adrian Edwards ^{1

†} , MB BS PhD ;   Robert G Newcombe ^{1

†} , PhD CStat FFPH ;   Patricia Wright ^{2

†} , PhD ;   Paul Kinnersley ^{1

†} , PhD ;   Jeff Griffiths ^{3

†} , PhD ;   Mari Jones ^{3

†} , PhD ;   Janet Williams ^{3

†} , PhD ;   Richard Grol ^{4

†} , PhD ;   Glyn Elwyn ^{1

†} , BA MB BCh MSc FCRGP PhD

¹ Department of Primary Care and Public Health , School of Medicine , Cardiff University , Cardiff , GB

² School of Psychology , Cardiff University , Cardiff , GB

³ School of Mathematics , Cardiff University , Cardiff , GB

⁴ IQ Scientific Institute for Quality in Healthcare , Radboud University , Nijmegen , NL

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