Andy R Chapman1, Edward Litton2, Jenny Chamberlain3, Kwok M Ho4. 1. Department of Intensive Care Medicine, Royal Perth Hospital, Perth, 6000, Western Australia. Electronic address: Drandychapman@gmail.com. 2. Department of Intensive Care Medicine, Royal Perth Hospital, Perth, 6000, Western Australia; School of Medicine and Pharmacology, University of Western Australia, Perth, Western Australia. 3. Department of Intensive Care Medicine, Royal Perth Hospital, Perth, 6000, Western Australia. 4. Department of Intensive Care Medicine, Royal Perth Hospital, Perth, 6000, Western Australia; School of Population Health, University of Western Australia, Perth, Western Australia.
Abstract
PURPOSE: The purpose of this study is to determine whether varying the format used to present prognostic data alters the perception of risk among surrogate decision makers in the intensive care unit (ICU). METHODS: This was a prospective randomized comparative trial conducted in a 23-bed adult tertiary ICU. Enrolled surrogate decision makers were randomized to 1 of 2 questionnaires, which presented hypothetical ICU scenarios, identical other than the format in which prognostic data were presented (eg, frequencies vs percentages). Participants were asked to rate the risk associated with each prognostic statement. RESULTS: We enrolled 141 surrogate decision makers. The perception of risk varied significantly dependent on the presentation format. For "quantitative data," risks were consistently perceived as higher, when presented as frequencies (eg, 1 in 50) compared with equivalent percentages (eg, 2%). Framing "qualitative data" in terms of chance of "death" rather than "survival" led to a statistically significant increase in perceived risks. Framing "quantitative" data in this way did not significantly affect risk perception. CONCLUSION: Data format had a significant effect on how surrogate decision makers interpreted risk. Qualitative statements are interpreted widely and affected by framing. Where possible, multiple quantitative formats should be used for presenting prognostic information. Crown
RCT Entities:
PURPOSE: The purpose of this study is to determine whether varying the format used to present prognostic data alters the perception of risk among surrogate decision makers in the intensive care unit (ICU). METHODS: This was a prospective randomized comparative trial conducted in a 23-bed adult tertiary ICU. Enrolled surrogate decision makers were randomized to 1 of 2 questionnaires, which presented hypothetical ICU scenarios, identical other than the format in which prognostic data were presented (eg, frequencies vs percentages). Participants were asked to rate the risk associated with each prognostic statement. RESULTS: We enrolled 141 surrogate decision makers. The perception of risk varied significantly dependent on the presentation format. For "quantitative data," risks were consistently perceived as higher, when presented as frequencies (eg, 1 in 50) compared with equivalent percentages (eg, 2%). Framing "qualitative data" in terms of chance of "death" rather than "survival" led to a statistically significant increase in perceived risks. Framing "quantitative" data in this way did not significantly affect risk perception. CONCLUSION: Data format had a significant effect on how surrogate decision makers interpreted risk. Qualitative statements are interpreted widely and affected by framing. Where possible, multiple quantitative formats should be used for presenting prognostic information. Crown
Authors: Andrea K Knies; Qiang Zhang; Prerak Juthani; Stephanie Tu; Jolanta Pach; Aida Martinez; Joan K Monin; David Y Hwang Journal: Crit Care Explor Date: 2020-07-06
Authors: David Y Hwang; Andrea K Knies; David Mampre; Stanislav Kolenikov; Marci Schalk; Heather Hammer; Douglas B White; Robert G Holloway; Kevin N Sheth; Liana Fraenkel Journal: Neurology Date: 2020-04-27 Impact factor: 11.800
Authors: Kelsey J Goostrey; Christopher Lee; Kelsey Jones; Thomas Quinn; Jesse Moskowitz; Jolanta J Pach; Andrea K Knies; Lori Shutter; Robert Goldberg; Kathleen M Mazor; David Y Hwang; Susanne Muehlschlegel Journal: Crit Care Explor Date: 2021-03-09
Authors: Bárbara Vieira Carneiro; Lucas Lonardoni Crozatti; Pedro Vitale Mendes; Antonio Paulo Nassar Júnior; Leandro Utino Taniguchi Journal: Rev Bras Ter Intensiva Date: 2022 Apr-Jun