In USA, approx. 8o% of hospitals are using electronic health records, due to which it is possible to gather useful information for research & development. Now healthcare industries are actively looking for transformation of its major areas by meaningful use of analytics.
To know about its challenges and impact, please go through the link: http://ehrintelligence.com/2014/03/17/for-healthcare-analytics-you-need-to-have-goals-in-sight/