Enrollment in consumer-directed health plans (CDHPs) grew by 25% in 2007, from 10 million Americans to 12.5 million, according to a study commissioned by the American Association of Preferred Provider Organizations. Other highlights from the study, which focused primarily on Health Reimbursement Arrangements (HRAs) and Health Savings Accounts (HSAs):

• In 2007, 7.5 million people were enrolled in HRA-based plans and 5 million in HSA-based plans.
  7% of all employers offered a CDHP, and 11% are very likely to offer the plans in 2008.
• Employers offering consumer-directed plans are more likely to provide health information tools, such as information on health conditions and data on provider quality and costs.
• More than 97% of all CDHP plans are built on preferred provider networks. The greatest growth in adoption is among employers with 500 or fewer employees.
• Enrollment in CDHPs grows in each year the plan is offered. Among those companies that offered an HSA for three years, average enrollment grew significantly each year, reaching 29% in the third year.