%0 Journal Article %@ 2561-326X %I JMIR Publications %V 2 %N 2 %P e24 %T The iPrevent Online Breast Cancer Risk Assessment and Risk Management Tool: Usability and Acceptability Testing %A Lo,Louisa L %A Collins,Ian M %A Bressel,Mathias %A Butow,Phyllis %A Emery,Jon %A Keogh,Louise %A Weideman,Prue %A Steel,Emma %A Hopper,John L %A Trainer,Alison H %A Mann,Gregory B %A Bickerstaffe,Adrian %A Antoniou,Antonis C %A Cuzick,Jack %A Phillips,Kelly-Anne %+ Department of Medical Oncology, Peter MacCallum Cancer Centre, Locked Bag 1, A'Beckett Street, Victoria, 8006, Australia, 61 3 85597860, Kelly.Phillips@petermac.org %K clinical decision support %K breast cancer %K BRCA1 gene %K BRCA2 gene %K risk %K preventive health %K screening %D 2018 %7 07.11.2018 %9 Original Paper %J JMIR Formativ Res %G English %X Background: iPrevent estimates breast cancer (BC) risk and provides tailored risk management information. Objective: The objective of this study was to assess the usability and acceptability of the iPrevent prototype. Methods: Clinicians were eligible for participation in the study if they worked in primary care, breast surgery, or genetics clinics. Female patients aged 18-70 years with no personal cancer history were eligible. Clinicians were first familiarized with iPrevent using hypothetical paper-based cases and then actor scenarios; subsequently, they used iPrevent with their patients. Clinicians and patients completed the System Usability Scale (SUS) and an Acceptability questionnaire 2 weeks after using iPrevent; patients also completed measures of BC worry, anxiety, risk perception, and knowledge pre- and 2 weeks post-iPrevent. Data were summarized using descriptive statistics. Results: The SUS and Acceptability questionnaires were completed by 19 of 20 clinicians and 37 of 43 patients. Usability was above average (SUS score >68) for 68% (13/19) clinicians and 76% (28/37) patients. The amount of information provided by iPrevent was reported as “about right” by 89% (17/19) clinicians and 89% (33/37) patients and 95% (18/19) and 97% (36/37), respectively, would recommend iPrevent to others, although 53% (10/19) clinicians and 27% (10/37) patients found it too long. Exploratory analyses suggested that iPrevent could improve risk perception, decrease frequency of BC worry, and enhance BC prevention knowledge without changing state anxiety. Conclusions: The iPrevent prototype demonstrated good usability and acceptability. Because concerns about length could be an implementation barrier, data entry has been abbreviated in the publicly available version of iPrevent. %M 30684421 %R 10.2196/formative.9935 %U http://formative.jmir.org/2018/2/e24/ %U https://doi.org/10.2196/formative.9935 %U http://www.ncbi.nlm.nih.gov/pubmed/30684421