These patients were asked to telephone the project office to indicate whether they were or were not interested in participating.
Weekly random replicates of 100 250 of them were sent a letter describing the study and asking them to telephone the project office and indicate whether or not they were interested in participating.
In the United States, CDC recently adapted an ongoing national household telephone survey project, the Behavioral Risk Factor Surveillance System (BRFSS), to measure and monitor influenza vaccination coverage during the 2004 05 influenza season (14 ).
"Telephone befriending" projects have been set up, such as one by the Seafarers Link in which ex-seafarers are encouraged to call each other on a weekly basis.
A. J. Jacobs, the best-selling author and humorist, was hoping to get former President George H. W. Bush on the telephone for a project involving genealogy.
In suburban Chicago, CDW Computer Centers uses the extranet to help its telephone sales force project that "personal touch" once reserved for face-to-face encounters.
In 1995, about the time of their bar or bat mitzvahs, 1,466 teenagers nationwide were asked questions relating to their identity as Jews, in a telephone survey, a project by the center.
The sampling design of the study "Pathological Gambling and Epidemiology" (PAGE) included four recruitment channels: general population, gambling locations, project telephone hotline, and in-patient treatment for pathological gambling.
The PAC met regularly and also made contact by e-mail and telephone with the project team.
For similar reasons, women were asked whether or not telephone messages from Project DC-HOPE staff could be left on their telephone answering machines.
