Helen Worthington

Helen Worthington, PhD, CStat


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Personal profile

Research interests

I am Professor of Evidence Based Healthcare (since 2003) and Emeritus Co-ordinating Editor of the international Cochrane Oral Health Group. 

I have a strong international reputation as a proponent of evidence based oral care.  This follows from my background as a medical statistician involved in clinical trials and undertaking over 20 Cochrane systematic reviews in oral health.  Two recently completed NIHR clinical trials include: QuaD - assessing the value of scale and polish treatments, and oral health advice to regularly attending patients, and INTERVAL - addressing how frequently you should go for a dental check-up.

As an acknowledgment of my contribution to the dental profession, mainly through my Cochrane work, I have been made an Honorary Fellow of the Royal College of Surgeons, and have been awarded a BDA Thomas medal by the British Dental Association.

My collaborations

I collaborate with members of the Cochrane Oral Health Group Editorial Team (Jan Clarkson, Luisa Fernandez, Phil Riley, Anne-Marie Glenny, Anne Littlewood, Laura MacDonald, Tanya Walsh). I  collaborate externally with Marco Esposito (Italy), Valeria Marhino (Brazil), Edward Lo, May Wong (University of Hong Kong), Tina Poklepovic (Croatia). 

Memberships of committees and professional bodies

  • Joint co-ordinating Editor, Cochrane Oral Health Group
  • Core reviewer to BioMed Central Oral Health
  • Member of BDA, Health and Science Committee
  • Editorial Board of Community Dental Health

Methodological knowledge

Good knowledge of statistics and epidemiology applied to dental research. Also methodological expertise in undertaking meta-analysis and interpreting evidence.


  • BSc in Mathematics (1st class Hon) (University of Sheffield) 1973
  • MSc in Statistics (University of Manchester) 1975
  • PhD (University of Manchester) 1994
  • CStat (Fellow of Royal Statistical Society)

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


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Collaborations and top research areas from the last five years

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