- Chairman of the Education Committee of the Society for Epidemiologic Research (2013-2015)
- Executive Board, McGill Centre on Population Dynamics (2012-2015)
- Editor, Epidemiology (2007- )
- Associate Editor, American Journal of Epidemiology (2006-)
- Editorial Board, International Journal of Biostatistics (2011-)
- Editorial Board, Revista Peruana de Medicina Experimental y Salud Publica (2010-)
- Editorial Board, Revista Chilena de Salud Pública (2013-)
- McGill Departmental Committees:
-Chair, Doctoral Curriculum Committee (2009 -)
-Departmental Admissions Committee (2014)
- What Have We Learned So Far about Racial Disparities in Cardiovascular Disease from Genome-Wide Association Studies? Invited seminar presented at the University of Florida, Gainesville, FL, April 14th 2014.
- Mediation: Modern Tools to Evaluate Direct and Indirect Effects. Invited seminar presented at the University of California at San Francisco. February 24th, 2014.
- Consideraciones estructurales en el análisis epidemiológico. Invited Presentation at the Instituto Nacional de Salud (INS), January 29th, 2014, Lima, Peru.
- Structural Considerations in Social Epidemiologic Analysis. Invited Presentation at the Program in Public Health, University of California at Irvine, October 11th, 2013, Irvine, CA.
- Negative Controls in the Genetic Epidemiology of Racial Disparities. Invited presentation at the Annual Meeting of the Society for the Social Studies of Science (4S), October 10th, 2013, San Diego, CA.
- Making Medical Diagnosis and Treatment Decisions Based on Scientific Evidence Rather than Racial/Ethnic Stereotypes. Invited Presentation at “Addressing Racial/Ethnic Health Disparities: Best Practices for Clinical Care and Medical Education in the 21st Century”, University of Texas, Austin, TX, September 23, 2013.