Wireless Substitution: Early Release of Estimates from the National Health Interview Survey, July-December 2012.

摘要

Preliminary results from the JulyDecember 2012 National Health Interview Survey (NHIS) indicate that the number of American homes with only wireless telephones continues to grow. Nearly two in every five American homes (38.2%) had only wireless telephones (also known as cellular telephones, cell phones, or mobile phones) during the second half of 2012, an increase of 2.4 percentage points since the first half of 2012. In addition, nearly one of every six American homes (15.9%) received all or almost all calls on wireless telephones despite also having a landline telephone. This report presents the most up-to-date estimates available from the federal government concerning the size and characteristics of these populations.