Accessibility statement

Petal Petersen Williams
Research Fellow



Petal is a Research Fellow in the Mental Health and Addiction Research Group at the University of York's Department of Health Sciences.

Petal has been involved in a variety of studies including interventions targeting the interface between substance use and HIV, exploration of substance use among pregnant women, treatment service quality, alcohol policy and other substance-related interventions situated within health care settings. Most recently her research has focussed on alcohol prevention in pregnant and lactating women and alcohol-related trauma and injury surveillance in South Africa prior to joining the University of York.


  • PhD Public Health and Family Medicine
  • MA Psychological Research
  • B.SocSci (Hons) Psychology



Petal has a keen interest in healthcare provision and health and wellness more broadly and recently in the development and delivery of technology-driven solutions to healthcare needs.


  • Promoting Smoking CEssation and PrevenTing RElapse in people with mental illness after a smoke free mental health inpatient stay (SCEPTRE)
  • E-cigarettes for Smoking Cessation And reduction in People with mEntal illness (ESCAPE trial)

Research group(s)


Selected publications

External activities

Editorial duties

  • Petal serves on the editorial board for PLOS ONE

Petal Petersen Williams

Contact details

Dr Petal Petersen Williams
Research Fellow

Tel: +44 (0)1904 32 4923