Elie A. Akl|Nancy Maroun|Gordon Guyatt|Andrew D Oxman|Pablo Alonso?Coello|Gunn Elisabeth Vist|P.J. Devereaux|Víctor M. Montori|Holger J. Schünemann
Symbols were superior to numbers for presenting strength of recommendations to health care consumers: a randomized trial
University at Buffalo, State University of New York|University at Buffalo, State University of New York|McMaster University|Nasjonalt Kunnskapssenter for Helsetjenesten|Iberoamerican Cochrane Centre|Hospital de Sant Pau|Nasjonalt Kunnskapssenter for Helsetjenesten|McMaster University|Mayo Clinic
compare health care consumers understanding evaluations preferences symbols vs numbers letters representation strength recommendations sor quality evidence qoequestionnaire study randomized controlled design setting community health education programeightyfour participants completed questionnaire presentation sor participants better objective understanding symbols numbers 74 vs 14 p0001 also scored symbols positively numbers negatively ease understanding mean difference md15 p0001 clearness conciseness md15 p0001 conveyance degree uncertainty md07 p0092 half 48 preferred symbols numbers presentation qoe objective understanding symbols letters similar 91 vs 95 p0509 participants scored symbols letters positively scores symbols however lower ease understanding md07 p0019 clearness conciseness md06 p0051 conveyance qoe md04 p024symbols superior numbers presentation sor objective understanding high symbols letters presentation qoe letters conveyed qoe better symbols