Applying a standard measure of the method mix evenness suggests 4 patterns among 15 countries moving toward a more balanced mix: (1) rise of one previously underrepresented or new method, (2) replacement of traditional with modern methods, (3) continued but declining domination by a single method, and (4) general movement toward a balanced mix. Improving availability of underutilized or new methods can improve the method mix, although better implementation of more popular methods might increase contraceptive use more expeditiously.

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for their support and guidance. In Rwanda we appreciate the active involvement of Dr.

The Population Council confronts critical health and development issues-from stopping the spread of HIV to improving reproductive health and ensuring that young people lead full and productive lives. Through biomedical, social science, and public health research in 50 countries, we work with our partners to deliver solutions that lead to more effective policies, programs, and technologies that improve lives around the world. Established in 1952 and headquartered in New York, the Council is a nongovernmental, nonprofit organization governed by an international board of trustees.

This review concludes that in order to build the evidence base on what works in the FP/RH field, it may be expedient to focus on those social accountability interventions with some track record in achieving positive outcomes. Such interventions could benefit from an implementation science approach that examines not only outcomes, but the strengths and shortcomings of their actual implementation.