Universal Health Insurance

What is the truth about the uninsured Americans in this debate about Universal Health Care?

According to a study released by the Emploment Policy Institute there are a lot of myths concerning the number of uninsured Americans. Here are some of the statistics they share:

Of the 47 million uninsured Americans "shows that more than 43 percent, or 18 million, of uninsured Americans ages 18-64 could likely afford health coverage and are actually 'voluntarily uninsured.'" So then the 47 million is not really 47 million, but only 27 million. The study calls these 18 million "voluntarily uninsured"

The report further states "...79 percent of people with incomes between 2.5 and 3.75 times the poverty level currently purchase private health insurance". What about the other 21%?

Here is a link to this stduy by Dr's June and Dave O'Neill: http://epionline.org/studies/oneill_06-2009.pdf

If there is information that refutes this, I would love to see it posted here.