Ona McCarthy BA MSc

Research Fellow


I am an epidemiologist in the Department of Population Health. I completed my BA at the University of Massachusetts (2001) where I studied Sociology and Psychology and MSc in Epidemiology at LSHTM (2005). I joined LSHTM in March of 2013.




I teach on the Basic Epidemiology and Design & Analysis of Epidemiological Studies MSc modules and on the Introductory Course in Epidemiology and Medical Statistics and Adolescent Health in Low and Middle Income Countries short courses. I am a personal tutor on the Reproductive and Sexual Health Research MSc.


My research interests include developing and evaluating interventions to improve sexual and reproductive health.

Research areas

  • Adolescent health
  • Behaviour change
  • Complex interventions
  • Mixed methods
  • Public health
  • Randomised controlled trials
  • Reproductive health
  • Sexual health


  • Epidemiology
  • Psychology

Disease and Health Conditions

  • Sexually transmitted infection


  • Arab World
  • Euro area
  • Europe & Central Asia (developing only)
  • Latin America & Caribbean (developing only)


  • Bolivia
  • Tajikistan
  • United Kingdom

Other interests

  • Adolescents
  • Behavioural Health Sciences
  • Chlamydia Trachomatis
  • Contraception
  • Family Planning
  • Occupied Palestinian Territories
  • Population Studies Group
  • Sexual and Reproductive Health
  • young people
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