Health surveys today need to include data obtained from both landline and wireless telephones to avoid coverage bias. A new report from the National Center for Health Statistics (NCHS) furnishes demographic differences and data from inhabitants of residences with one or the other of these two kinds of telephones involving measures, such as alcohol consumption, perceived health status, health insurance coverage, and experiencing financial barriers to obtaining health care.
The report can be obtained at https://www.cdc.gov/nchs/data/nhis/earlyrelease/wireless201812.pdf.