One of four American homes (24.5%) had only wireless telephones (that is, cell phones) in the last half of 2009.
The number comes from the preliminary results of the July–December 2009 National Health Interview Survey (NHIS), which showed that the households only cell phones increased 1.8% since the first half of 2009. The report also showed that one of every seven American homes (14.9%) did have a landline but received all or almost all calls on wireless telephones.
The U.S. Centers for Disease Control and Prevention’s (CDC) National Center for Health Statistics (NCHS) conducts the survey in May and December of each year. Estimates are based on in-person interviews that NHIS conducts continuously throughout the year to collect information on health status, health-related behaviors, and health care utilization. The survey also includes information about household telephone use.
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