PhysioNet Index Menu Share About FAQs Explore Data View datasets Software View software Challenges View challenges Tutorials View tutorials Cancel Search Search PhysioNet Log in Share About FAQs Data View datasets Software View software Challenges View challenges Tutorials View tutorials Search Sort by Relevance Latest Oldest Title (Asc.) Title (Desc.) Size (Asc.) Size (Desc.) Resource type   Data Software Challenge Model Apply Resources Database Restricted Access Flatten: COVID-19 Survey Data on Symptoms, Demographics and Mental Health in Canada Shrey Jain, Marie Charpignon, Mathew Samuel, et al. Freely accessible COVID-19 symptom dataset surveying Canadians and gathered from March to July of 2020 by the global humanitarian aid non-profit Flatten. This dataset of 294,106 surveys gathered from March 23rd to July 30th in 2020. public health population statistics covid-19 Published: March 8, 2021. Version: 1.0 Maintained by the MIT Laboratory for Computational Physiology Supported by the National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Heart Lung and Blood Institute (NHLBI), and NIH Office of the Director under NIH grant numbers U24EB037545 and R01EB030362 Navigation Discover Data Share Data About News Explore Data Software Challenges Tutorials Subscribe to our Newsletter Subscribe Now -- Accessibility