(KFF, a non-partisan foundation focused on health care, reports that health insurance premiums, since the passage of the Patient Protection and Affordable Care Act (Act), for a family rose nine percent in 2011; increase is the largest annual increase since 2005 and is more than double rate of inflation and quadruple the rate of wage growth; Act accountable for over 20 percent of increase, particularly provision in Act allowing "children" up to age 26 to remain on parents' employer-sponsored plans; Act also mandates some plans provide preventative services with no patient cost-sharing; study points out insurance rate increases due to future uncertainty and the difficulty of implementing increases beginning in 2014; study concludes Act is a contributor to companies not hiring).