Study Raises Questions About Cost Savings From Preventive Care Reform's Backers Say Such Measures Will Help Pay for Overhaul of Health System By Lori Montgomery Washington Post Staff Writer Tuesday, September 1, 2009 Preventive services for the chronically ill may reduce health-care costs, but they are unlikely to generate the kind of fantastic savings that President Obama and other Democrats have said could help pay for an overhaul of the nation's health system, according to a study being published Tuesday.