The plan design showing the greatest growth rate is the high-deductible plan. ???The percentage of employers whose most-enrolled plan was high deductible went from 13 percent in 2010 to 17 percent in 2011.??? Unfortunately, ???high-deductible health plan (HDHP) enrollees cut back on preventive services such as childhood vaccinations, mammography, and cancer screenings.??? In addition, ???a higher