Understanding the impact of public policy on cancer research: a bibliometric approach.

With global spend on cancer research from the public sector now in excess of 14 billion euro, as well as the increasing burden of disease in market economies and low-middle income countries through changing demographics (ageing and population growth) cancer is now one of the most complex and global public policy issues. Using novel bibliometrics we have sought to investigate changes in research activity (total output), relative commitment and collaborations between countries/regions with similar healthcare and population and development parameters - United Kingdom, France, Germany, Canada and Sweden - to assess the utility of this policy research approach by analysing two different cohorts (1995-1999 and 2000-2004) to study the impact of changes on research publications as a surrogate for overall research activity.