Healthcare quality for poor varies from state to state

A review of data from the nation's 306 healthcare markets, as well as interviews with scores of experts and visits to communities from Maine to Hawaii, points to many common features of America's healthiest places.

More people have health insurance. Doctors and hospitals cooperate more closely, ensuring patients get preventive care and don't fall through the cracks. Civic and business leaders help drive community efforts to expand access to healthcare, measure results and improve quality.