This study evaluated the health impact of a public private partnership using microfinance to upgrade slum infrastructure in Ahmedabad, India. The authors show a statistically significant reduction in waterborne illness as a result of the intervention and point to further unmeasured benefits from the upgrade. This is an example of the data driven projects HHI is conducting to lend evidence with operational research on interventions.
Reference: Soc Sci Med. 2010 Sep;71(5):935-40.