MAVIE is a web-based prospective cohort study of Home, Leisure, and Sports Injuries with a longitudinal follow-up of French general population volunteers . MAVIE participants are voluntary members of French households, including overseas territories . Participation in the cohort involves answering individual and household questionnaires and relevant exposures and prospectively reporting injury events during the follow-up . Recruitment and data collection have been in progress since 2014 . The number of participants as of the end of the year 2019 was 12,419 from 9,483 households . A total of 8,640 participants provided data during follow-up . Respondents to follow-up were composed of 763 children aged 0-14 , 655 teenagers and young adults aged 15-29 , 6,845 adults, and 377 people aged 75 or more . At the end of the year 2019 , 1,698 participants had reported 2,483 injury events . Children, people aged 50 and more, people with poor self-perceived physical and mental health, people who engage in sports activities, and people with a history of injury during the year before recruitment were more likely to report new injuries . An interactive mobile/web application (MAVIE-Lab) was developed to help volunteers decide on personalized measures to prevent their risks of HLIs . The available data provides an opportunity to analyse multiple exposures at both the individual and household levels that may be associated with an increased risk of trauma . The ongoing analysis includes HLI incidence estimates, the determination of health-related risk factors, a specific study on the risk of home injury, another on sports injuries, and an analysis of the role of cognitive skills and mind wandering . Volunteers form a community that constitutes a population laboratory for preventative initiatives.