Jan Hazelzet

Jan Hazelzet is a Researcher at Erasmus MC, Faculty of Medicine, Department of Public Health. His work spans clinical pediatrics, critical care, and public health, with a strong focus on sepsis, septic shock, and patient-centered outcomes in pediatric populations.

His research interests include:

• Sepsis and meningococcemia in children
• Pediatric intensive care outcomes
• Patient-reported outcome measures
• Value-based healthcare and health care cost analysis
• Application of machine learning in inflammatory bowel disease epidemiology

The recent publications reflect a trend toward integrating clinical research with health services and policy evaluation, particularly using large datasets and systematic reviews to inform care improvement. His work frequently involves multicenter collaborations and consortium-based research.

Scientific contributions include over 200 research outputs, with recent emphasis on systematic reviews, machine learning models, and health economics. Notable areas include:

• Development of predictive models for IBD
• Analysis of hospital variation in IBD outcomes
• Evaluation of patient experience in pediatric care
• Exploration of value-based healthcare in military and civilian systems

He has supervised 13 research projects, indicating active mentorship. While specific grants are not listed, his involvement in large studies suggests external funding. He is part of collaborative networks such as the SYMPHONY consortium and TiN study group.

Jan Hazelzet is actively contributing to public health research through clinical translation and health system evaluation, with a strong footprint in pediatric and critical care medicine.