Evaluating the Acceptance and Usability of an App Promoting Weight Gain Prevention and Healthy Behaviors Among Young Women With a Family History of Breast Cancer: Protocol for an Observational Study

Mary Pegington   ^{1, 2} , MSc ;   Alan Davies   ³ , PhD ;   Julia Mueller   ⁴ , PhD ;   Rachel Cholerton   ⁵ , PhD ;   Anthony Howell   ^{1, 2, 6, 7} , MBBS ;   D Gareth Evans   ^{2, 6, 8} , MBBS ;   Sacha J Howell   ^{1, 2, 6, 7} , MBBS, PhD ;   David P French   ^{5, 6} , PhD ;   Michelle Harvie   ^{1, 2, 6} , PhD

¹ Division of Cancer Sciences, The University of Manchester, Manchester, United Kingdom

² The Prevent Breast Cancer Research Unit, The Nightingale Centre, Manchester University NHS Foundation Trust, Manchester, United Kingdom

³ Division of Informatics, Imaging and Data Sciences, The University of Manchester, Manchester, United Kingdom

⁴ Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom

⁵ Manchester Centre for Health Psychology, School of Health Sciences, University of Manchester, Manchester, United Kingdom

⁶ Manchester Breast Centre, University of Manchester, Manchester, United Kingdom

⁷ Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom

⁸ Division of Evolution, Infection and Genomics, University of Manchester, Manchester, United Kingdom