The Population Reference Bureau is a partner on the Evidence Project—a global initiative that uses implementation science—the strategic generation, translation, and use of evidence—to improve family planning policies, programs, and practices.

Led by the Population Council in partnership with INDEPTH Network, International Planned Parenthood Federation, PATH, Population Reference Bureau, and the project’s University Resource Network, the five-year project (2013-2018) is investigating which strategies work best in improving, expanding, and sustaining family planning services. It is also evaluating how to implement and scale up those strategies. Critical to the Evidence Project is translating this knowledge and working with stakeholders to apply the evidence and to build capacity in using implementation science to improve policies, programs, and practices.

Through implementation science, the Evidence Project pinpoints how family planning and reproductive health services can operate more effectively, equitably, and at scale. The project highlights and addresses barriers to contraceptive access and use. Working with stakeholders, the project fosters the application of this evidence to health systems, with the goal of improving service delivery and access to vital information and contraceptives—critical elements for reducing unmet need and unintended pregnancies around the world.

Recent products and materials are:

Analyzing the Building Blocks of Resilience: Findings From a Baseline Survey of the Tuungane Population, Health, and Environment Project in Western Tanzania

A new paper from the Evidence Project/PRB, based on a collaboration with Tuungane, a Population, Health, and Environment (PHE) project jointly implemented by The Nature Conservancy and Pathfinder International, expands the evidence base for the impact of integrated PHE programming on resilience, improving livelihoods, and adapting to climate change.

The Impact of Population, Health, and Environment Projects: A Synthesis of the Evidence

Integrating family planning into non-health sector development projects has been promoted as a win-win for multiple sectors, leading to both increased access to and use of contraceptives as well as improvements in many other development indicators. This working paper synthesizes the available research from the latest generation of PHE projects, providing a detailed account of the benefits of integrated projects and gaps in the evidence base.

For more information see Evidence website at:,
or contact Kate Gilles, senior communications specialist, Population Reference Bureau (seconded to the Population Council) at