An approach to sample size calculation for research on duration of untreated psychosis

Affiliations

• ¹ Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada; McGill University, Department of Psychiatry, Montreal, Quebec, Canada. Electronic address: genevieve.gariepy@mail.mcgill.ca.
• ² Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada; McGill University, Department of Psychiatry, Montreal, Quebec, Canada.
• ³ Douglas Mental Health University Institute, McGill University, Verdun, Quebec, Canada; McGill University, Department of Psychiatry, Montreal, Quebec, Canada; McGill University, Department of Epidemiology and Biostatistics, Montreal, Quebec, Canada.