1 Concordia University, Department of Psychology, Montreal, Quebec, Canada; McGill Group for Suicide Studies, Douglas Mental Health University Institute, Department of Psychiatry, Montreal, Quebec, Canada. Electronic address: melissa.commmisso@hotmail.com.
2 McGill Group for Suicide Studies, Douglas Mental Health University Institute, Department of Psychiatry, Montreal, Quebec, Canada. Electronic address: marie-claude.geoffroy@mcgill.ca.
3 Department of Educational and Counselling Psychology, McGill University, Montreal, Quebec, Canada. Electronic address: carolineelizabeth.temcheff@mcgill.ca.
4 McGill Group for Suicide Studies, Douglas Mental Health University Institute, Department of Psychiatry, Montreal, Quebec, Canada; Department of Educational and Counselling Psychology, McGill University, Montreal, Quebec, Canada. Electronic address: sara.scardera@mail.concordia.ca.
5 Department of Special Needs Education, University of Oslo, Norway; CHU Ste-Justine Research Centre, Montreal, QC, Canada. Electronic address: francis.vergunst@isp.uio.no.
6 CHU Ste-Justine Research Centre, Montreal, QC, Canada; Department of Social and Preventive Medicine, University of Montreal, Quebec, Canada. Electronic address: sylvana.cote.1@umontreal.ca.
7 Department of Psychoeducation, University of Montreal, Canada. Electronic address: frank.vitaro@umontreal.ca.
8 CHU Ste-Justine Research Centre, Montreal, QC, Canada; Department of Psychology, University of Montreal, Montreal, Quebec, Canada. Electronic address: richard.ernest.tremblay@umontreal.ca.
9 McGill Group for Suicide Studies, Douglas Mental Health University Institute, Department of Psychiatry, Montreal, Quebec, Canada; Department of Epidemiology, Biostatistics, and Occupational Health, School of Population and Global Health, McGill University, Montreal, Quebec, Canada. Electronic address: massimiliano.orri@mcgill.ca.

Childhood externalizing problems have been linked with adult criminality. However, little is known about criminal outcomes among children with comorbid externalizing and internalizing problems. We examined the associations between profiles of behavioral problems during childhood (i.e., externalizing, internalizing, and comorbid) and criminality by early adulthood. Participants were N = 3017 children from the population-based Quebec Longitudinal Study of Kindergarten Children followed up from age...