Authors' reply: Letter to the Editor: Comparison of statistical approaches dealing with time-dependent confounding in drug effectiveness studies (SMMR, Vol 27, Issue 6, 2018)

Affiliations

• ¹ 1 School of Population and Public Health, The University of British Columbia, Vancouver, Canada.
• ² 2 Centre for Health Evaluation and Outcome Sciences, Providence Health Care, Vancouver, Canada.
• ³ 3 Department of Statistics, University of British Columbia, Vancouver, Canada.
• ⁴ 4 Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada.
• ⁵ 5 Centre for Clinical Epidemiology, Lady Davis Institute, Jewish General Hospital, Montreal, Canada.
• ⁶ 6 Department of Pediatrics, McGill University, Montreal, Canada.
• ⁷ 7 Research Institute of the McGill University Health Centre, Montreal, Canada.