User Experiences of a Smartphone-Based Attentive Eating App and Their Association With Diet and Weight Loss Outcomes: Thematic and Exploratory Analyses From a Randomized Controlled Trial

Victoria Whitelock   ^{1, 2} , BSc, PhD ;   Inge Kersbergen   ³ , BSc, MSc, PhD ;   Suzanne Higgs   ⁴ , BA, MA, PhD ;   Paul Aveyard   ⁵ , PhD, FRCP, FRCGP, FFPH ;   Jason CG Halford   ¹ , BSc, PhD, C.Psychol. ;   Eric Robinson   ¹ , PhD

¹ Department of Psychological Sciences, University of Liverpool, Liverpool, United Kingdom

² Cancer Intelligence, Cancer Research UK, London, United Kingdom

³ School of Health and Related Research, University of Sheffield, Sheffield, United Kingdom

⁴ The School of Psychology, University of Birmingham, Birmingham, United Kingdom

⁵ Nuffield Department of Primary Care Health Services, University of Oxford, Oxford, United Kingdom