A survey by the Mercer consulting firm has found 59% of companies intend to keep down rising healthcare costs next year by raising workers' deductibles, copays or out-of-pocket spending limits. On average, healthcare costs will go up by an estimated 5.7% in 2009 for both workers and their employers, the study found. That repeats this year's 5.7% increase and a 6.1% jump in 2007.