• M A Mohammad, S Koul, C P Gale, J Alfredsson, S James, O Fröbert, E Omerovic, and D Erlinge.
• From the, Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden.
• J. Intern. Med. 2021 Feb 1; 289 (2): 247-254.

BackgroundWe aimed to study the effect of social containment mandates on ACS presentation during COVID-19 pandemic using location activity and mobility data from mobile phone map services.MethodsWe conducted a cross-sectional study using data from the Swedish Coronary Angiography and Angioplasty Registry (SCAAR) including all ACS presentations during the pandemic until 7 May 2020. Using a count regression model, we adjusted for day of the week, daily weather and incidence of COVID-19.ResultsA 10% increase in activity around areas of residence was associated with 38% lower rates of ACS hospitalizations, whereas increased activity relating to retail and recreation, grocery stores and pharmacies, workplaces and mode of mobility was associated with 10-20% higher rates of ACS hospitalizations.ConclusionGovernment policy regarding social containment mandates has important public health implications for medical emergencies such as ACS and may explain the decline in ACS presentations observed during COVID-19 pandemic.© 2020 The Authors. Journal of Internal Medicine published by John Wiley & Sons Ltd on behalf of Association for Publication of The Journal of Internal Medicine.

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