CNN posted online tonight about the findings of a recent study on hearing loss published in the Archives of Internal Medicine.  Over 48 million Americans have hearing loss in one or both ear, the study concludes.

http://thechart.blogs.cnn.com/2011/11/14/hearing-loss-affects-1-in-5-americans-study-finds/?hpt=hp_t2

The last estimates I encountered were 1 in 10 or so, equaling some 28 to 36 million Americans with hearing loss.