Title: Development and internal validation of a model predicting severe maternal morbidity using variables available pre-conception and in early pregnancy: a population-based study
Natalie DAYAN MD1,2, Gabriel D SHAPIRO PhD1,2, Jin LUO MSc3, Jun GUAN MSc3, Deshayne B FELL PhD3,4, Carl A LASKIN MD5,6, Olga BASSO PhD2,7, Alison L PARK MSc3, Joel G RAY MD3,5
  1. Department of Medicine and Research Institute, McGill University Health Centre, Montreal, Quebec, Canada
  2. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
  3. ICES, Toronto, Ontario, Canada
  4. School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
  5. Department of Medicine and Obstetrics and Gynecology, University of Toronto
  6. TRIO Fertility, Toronto, Ontario, Canada
  7. Department of Obstetrics and Gynecology, McGill University Health Centre, Montreal, Quebec, Canada