Population Health and Return on Investment
Population health has been defined as "the health outcomes of a group of individuals, including the distribution of such outcomes within the group". It is an approach to health that aims to improve the health of an entire human population.
Return on investment (ROI) is the ratio between the net profit and cost of investment resulting from an investment of some resources. A high ROI means the investment's gains compare favorably to its cost. As a performance measure, ROI is used to evaluate the efficiency of an investment or to compare the efficiencies of several different investments.
Healthy London Partnership has been working closely with NEL  and other population health partners to develop a suite of tools to assist CCGs and STPs to provide population health and return on investment data.
The first project has produced a 'How to' guide to describe the two different analytic approaches to evaluate social prescribing schemes between Tower Hamlet and Merton.