Evaluating the impact of health policies: using a difference-in-differences approach

Affiliations

• ¹ Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, 1020 avenue des Pins Ouest, Montreal, QC, H3A 1A2, Canada.
• ² Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, 1020 avenue des Pins Ouest, Montreal, QC, H3A 1A2, Canada. erica.moodie@mcgill.ca.
• ³ Division of Infectious Diseases/Chronic Viral Illness Service, Department of Medicine, Glen Site, McGill University Health Centre, Montreal, QC, Canada.