I found the percentages of "people who say they are financially OK" in this article interesting, given the relatively high percentage of US citizens who live at

I found the percentages of "people who say they are financially OK" in this article interesting, given the relatively high percentage of US citizens who live at or below the poverty line. I believe the percentages they cite are inconsistent with known levels of poverty in our country; it would be good to know what subsets they surveyed