Koya Ayonrinde


  • The University of Western Australia (M503), 35 Stirling Highway,

    6009 Perth


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Personal profile


Dr Oyekoya (Koya) Ayonrinde is a Clinician Researcher.  He is a practicing Gastroenterologist and Hepatologist at Fiona Stanley Hospital, Clinical Associate Professor and Research Fellow at The University of Western Australia, and Clinical Associate Professor at Curtin University.

He graduated from The University of Western Australia and obtained a Fellowship of The Royal Australasian College of Physicians. He subsequently gained a PhD from The University of Western Australia, with a PhD thesis (Dean’s list) titled “The epidemiology and significance of non-alcoholic fatty liver disease in adolescents”. The invaluable experience from his PhD, using the resources of the Western Australian Pregnancy Cohort Study (Raine Study), has informed his keen interest in the developmental and childhood origins of health and disease. Armed with the knowledge that many adult-diagnosed disorders have origins during childhood and adolescence, he has continued research related to liver, gastrointestinal and cardiometabolic disorders across the life course, from foetal life to old age. 

He is recognised for his contributions to the epidemiology, phenotype and developmental origins of non-alcoholic fatty liver disease in adolescents, from parent pre-pregnancy characteristics, maternal health and lifestyle during pregnancy, through birth, childhood and adolescence nutrition, lifestyle and cardio-metabolic factors. He recently compared the historical epidemiology and phenotype of fatty liver from the 1800s to contemporary knowledge. He is also actively involved in describing the epidemiology, liver and cardiometabolic significance of fatty liver in adults. 

Dr Ayonrinde is an investigator and co-leader of the cardio-metabolic and liver special interest group of the Raine Study (rainestudy.org.au), which is one of the longest-running, successful longitudinal cohort studies in the world. His clinical and research interests include clinical quality improvement, epidemiological studies and clinical trials related to fatty liver, liver fibrosis and cirrhosis, colorectal polyps, and functional abdominal pain disorders. 

He is the Fiona Stanley Hospital site principal investigator for several nonalcoholic steatohepatitis (NASH) clinical trials.

He is a Member of the Gastroenterology Society of Australia (GESA), Fellow of the American Association for the Study of Liver Disease (AASLD), Member of the European Association for the Study of the Liver (EASL), Member of the American Association for Gastrointestinal Endoscopy (ASGE), and Member of the Developmental Origins of Health and Disease (DOHaD) Society.

He is a supervisor of undergraduate and postgraduate students, and his collaborations span various clinical and non-clinical fields, including gastroenterology and hepatology, clinical and nutritional epidemiology, biostatistics, cardiometabolic medicine, paediatrics and neonatology, psychiatry, psychology, radiology, nursing, obstetrics and gynaecology, physiotherapy, pharmacy and basic sciences.

Funding overview

1. Determining factors that underpin poor health outcomes related to progression of nonalcoholic fatty liver disease and abdominal pain from adolescence into adulthood - a longitudinal cohort study. CI Oyekoya Ayonrinde. WA Near-miss Awards (WANMA) 2021 program. Funded by Government of Western Australia, Department of Health, Future Health Research and Innovation Fund scheme. Year: 2021. Amount $141,709

2. Determining factors that underpin cardiovascular disease risk in young adults with fatty liver diagnosed during adolescence ten years earlier – a longitudinal cohort study. CI Oyekoya Ayonrinde. Spinnaker Grants scheme. Funded by Spinnaker Health Research Foundation. Year: 2021. Amount $15,000

3. A cross-sectional assessment of fatty liver in overweight and obese Western Australian Children. CI Oyekoya Ayonrinde. Telethon Child Health Research Grants scheme. Funded by Telethon Trust. Year: 2022. Amount $228,415.

4. The epidemiology, origins and associations of irritable bowel syndrome in adolescents. Year:2017.  Clinician Research Fellowship. CI Oyekoya Ayonrinde. Funded by Government of Western Australia and Raine Medical Research Foundation. Amount $237,000.

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 3 - Good Health and Well-being
  • SDG 5 - Gender Equality
  • SDG 16 - Peace, Justice and Strong Institutions

Education/Academic qualification

Medicine, PhD, The epidemiology and significance of nonalcoholic fatty liver disease in adolescents

External positions

Adjunct Clinical Associate Professor, Curtin University

2021 → …

Clinician Research Fellow, Raine Foundation

4 Feb 20185 Feb 2020

Adjunct Senior Research Fellow, Curtin University

2018 → …

Industry keywords

  • Children and Young People
  • Clinical Trials
  • Diagnostics
  • Health
  • Medicine and Pharma

Research expertise keywords

  • Fatty Liver
  • Nonalcoholic fatty liver disease
  • Liver fibrosis
  • Metabolic syndrome
  • Cardiometabolic risk
  • Colorectal polyps
  • Adolescents
  • Pregnancy
  • Elastography
  • adult outcomes
  • Quality improvement
  • Epidemiology
  • Childhood obesity
  • Adipose distribution
  • Irritable bowel syndrome
  • IBS


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