Flash Talks Session 1 11 15 – 11 30 Cross-category effects of a frequency reward program promoting consumption of fruit and vegetables Dr Luca Panzone University of Newcastle 11 30 – 11 45 Mobility and Transit Segregation in Urban Spaces Nandini Iyer University of Exeter 11 45 – 12 00 Behavioural Entropy as an Individual Difference Construct: A Research Programme using Massive Transactional Data Dr Neo PoonUniversity of Bristol 12 00 – 12 15 Seasonal purchase of antihistamines and ovarian cancer risk in the Cancer Loyalty Card Study (CLOCS): results from a nested case-control study Dr James Flanagan Imperial College London Session 2 13 15 – 13 30 STRIDE study: Supermarket Transaction Records In Dietary Evaluation Dr Victoria Jenneson University of Leeds 13 30 – 13 45 Forecasting local COVID-19/Respiratory Disease mortality via national longitudinal shopping data: the case for integrating digital footprint data into early warning systems Elizabeth Dolan University of Nottingham 13 45 – 14 00 Use of routinely collected healthcare data for analysis of indoor mobility and interaction Prof Ed Manley University of Leeds