Dr Caroline Free MBChB MSc PhD MRCGP

Senior Lecturer


Caroline Free is a Senior Lecturer in Epidemiology at the London School of Hygiene & Tropical Medicine. She trained in general practice and then worked in rural India (UP). She has continued to work as a general practitioner in a socially and ethnically diverse population in London and is an honorary consultant in Sexual and Reproductive Health. She completed her MSc at the LSHTM and her PhD in General Practice at Kings College London.




Epidemiology, Sexual and Reproductive Health, Study Design, E-health for Adolescent Health programming.


Her main research interests are in developing and evaluating e-health interventions for the prevention and management of disease. Her particular focus is on smoking cessation, sexual and reproductive health and the secondary prevention of coronary heart disease. She was the principal investigator for the txt2stop trial funded by the MRC. The txt2stop trial conducted in the UK included 5800 smokers willing to make a quit attempt. The trial demonstrated that smoking cessation support delivered by mobile phone text messaging more than doubles biochemically verified quitting in the long term. Following the trial new services providing smoking cessation support delivered by text message have been developed in the UK http://gosmokefree.nhs.uk/ways-to-quit/support-on-your-mobile/ and internationally.

 She is currently the PI for research developing and evaluating m-health interventions designed for young people in the chlamydia screening program and interventions to increase adherence to medication for the secondary prevention of heart disease. She is an adviser to the WHO m-health groups for smoking cessation, non-communicable diseases and the WHO M-health Evidence and Technical Review Group for Reproductive, Maternal, Neonatal and Child Health.

 Her current PhD students are developing and evaluating m-health interventions to improve nutrition in 6-9 month infants in India, m-health interventions to increase contraception use in Cambodia, and evaluating a web based sexual health service in the UK.


Research areas

  • Behaviour change
  • Clinical trials
  • Complex interventions
  • Health promotion
  • Primary care
  • Reproductive health
  • Sexual health
  • Smoking


  • Medicine

Disease and Health Conditions

  • Cardiovascular disease
  • Non-communicable diseases
  • Sexually transmitted disease
  • Sexually transmitted infection


  • Euro area
  • World


  • United Kingdom
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