Roger Zemek

Senior Scientist, CHEO Research Institute

Dr. Zemek is a pediatric emergency researcher with experience in multicenter studies, randomized controlled trials, and systematic reviews. He has research experience in pediatric concussion, including systematic reviews, guideline development, health administrative datasets, derivation and validation of clinical prediction rules, and interventional trials. Dr. Zemek is leading a national research program on pediatric concussion, through which he conducted the largest pediatric concussion study in the world to-date examining the predictors for Persistent Post-Concussion Symptoms in children suffering a concussion (5P study).

Dr. Zemek co-leads the Living Guideline for Pediatric Concussion, a project that is supported by the Ontario Ministry of Health. Information for patients and families on these guidelines can be found here and Clinical Recommendations for health care professionals providing care for pediatric patients with a suspected concussion can be found here.

Dr. Zemek is the chair of the Pediatric Emergency Research Canada (PERC) network and is also an investigator on multiple asthma studies, the PATCH COVID-19 antibody study, and mental health studies of children presenting to the Emergency Department.

Related News

Research Projects

  1. Building Resilience and Attachment in Vulnerable Adolescents: A Pilot Trial of a Brief Group Intervention for Adolescents with Mild to Moderate Suicidal Ideation and their Caregivers


    Study results demonstrate that the BRAVA intervention has the potential to reduce SI among adolescents who present to hospital services in crisis. Further studies are required to establish BRAVA's efficacy in a randomized controlled trial.

  2. Canadian Anaphylaxis Network- Predicting Recurrence after Emergency Presentation for Allergic REaction (CAN-PREPARE): A Prospective, Cohort Study Protocol


  3. Adolescents with a Concussion Have Altered Brain Network Functional Connectivity One Month Following Injury When Compared to Adolescents with Orthopedic Injuries


  4. Early Analgesic Administration and Headache Presence 7-days Post-Concussion in Children


  5. Nasopharyngeal swabs vs. saliva sampling for SARS-CoV-2 detection: A cross-sectional survey of acceptability for caregivers and children after experiencing both methods


    Though most youth find saliva sampling painless and prefer it to nasopharyngeal swabs, primary decision makers present for the experience generally remain accepting of both methods for COVID-19 testing.