How do we show “what works” to improve health? 

How do we show “what works” to improve health? Give an example of an evidence based program that has been successful in improving the health of the population. You may want to draw from some of these sites:

-www.choosingwisely.org
-The Community Guide for Preventive Services  www.thecommunityguide.org
-Agency for Healthcare Research and Quality  (www.ahrq.gov)
-Cochrane Collaboration (www.cochrane.org/) (specific for medical care)
-What works for Health? The County Health Rankings toolkit:  http://www.countyhealthrankings.org/roadmaps/what-works-for-health