Percentage of Uninsured Americans Rising

NEW YORK - The percentage of working-age Americans with moderate to middle incomes who lacked health insurance for at least part of the year rose to 41 percent in 2005, a dramatic increase from the 28 percent in 2001 without coverage, a study released on Wednesday found.

Moreover, more than half of the uninsured adults said they were having problems paying their medical bills or had incurred debt to cover their expenses, according to a report by the Commonwealth Fund, a New York-based private, health care policy foundation. The study of 4,350 adults also found that people without insurance were more likely to forgo recommended health screenings such as mammograms than those with coverage, and were less likely to have a regular doctor than their insured counterparts.