The affluent are slightly less concerned than they were in October, but nearly half still say they are worried about their ability to meet financial goals, a survey by Bank of America's Merrill Lynch found.
Health care costs were a major factor in respondents' worries, and 56 percent said they weren't sure how rising costs would factor into their retirement plans.
Of the groups surveyed by Merrill Lynch, boomers were the most concerned about outliving their retirement. Seventy-three percent said they weren't sure their assets would last and 61 percent were worried about downsizing their lifestyle in retirement.