Bob Erens

Associate Professor and Deputy Director, PIRU


I have over 30 years experience of applied health and social research and policy evaluation, with a particular focus on survey 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 includes experts in health and social care research and evaluation methodolgy in order 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, the implementation of the Friends and Family Test in general practice, and an evaluation of the Heatwave Plan for England. I also work on a project which looks at improving quality in general practice in the UK. 

With colleagues from LSHTM, UCL and NatCen, I was a co-applicant on the second and third National Surveys of Sexual Attitudes and Lifestyles (Natsal), the largest repeated survey on sexual behaviour in the world. In Natsal-3, I led a methodological project which compares results obtained from web surveys with those from the main Natsal CAPI/CASI survey to determine the representativeness of UK web panels and whether data collection via the web was appropriate for Natsal.

Research areas

  • Health care policy
  • Health policy
  • Health services research
  • Impact evaluation
  • Methodology
  • Public health
  • Sexual health


  • Social Policy
  • Social Sciences


  • United Kingdom

Other interests

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