Bob Erens

Associate Professor and Deputy Director, PIRU


I have over 25 years experience of applied social research and policy evaluation, with a particular focus on research and evaluation methods. Before joining LSHTM in 2011, I worked at the National Centre for Social Research (NatCen) in the UK in the fields of health research and survey methods.




I work with Prof Nick Mays and other colleagues from LSHTM, LSE, and Imperial College London in the Department of Health funded Policy Innovation Research Unit (PIRU). PIRU brings together experts in health and social care research and evaluation methodolgy to improve evidence-based policy-making and its implementation across the NHS, public health and social care ( Recent projects include evaluations of the Integrated Care and Support Pioneers and the implementation of the Friends and Family Test in general practice. 

With colleagues from LSHTM, UCL and NatCen, I was a co-applicant on the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3), the largest repeated survey on sexual behaviour in the world. I lead a methodological project which compares results obtained from several volunteer web panel surveys with those from the main Natsal CAPI/CASI survey to determine the representativeness of UK web panels.


Research areas

  • Health services research
  • Methodology
  • Public health
  • Sexual health


  • Social Policy
  • Social Sciences


  • United Kingdom

Other interests

  • Evaluation
  • Health Research
  • Health Service Integration
  • Health Survey Methods
  • Health Surveys
  • sexual behaviour
  • survey methods
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