Residential exposure to transportation noise in Denmark and incidence of dementia : national cohort study
OBJECTIVE: To investigate the association between long term residential exposure to road traffic and railway noise and risk of incident dementia.DESIGN: Nationwide prospective register based cohort study.SETTING: Denmark.PARTICIPANTS: 1 938 994 adults aged ≥60 years living in Denmark between 1 January 2004 and 31 December 2017.MAIN OUTCOME MEASURES: Incident cases of all cause dementia and dementi