Meanings of random digit in English

Two-hundred and ten individuals from the community were selected by random digit dialing.

Controls were identified using random digit dialing and matched to cases on age and ethnicity.

Controls were selected by random digit dialing with a participation rate of 70%.

Controls (n = 300) were selected by random digit dialing and from Medicare eligibility lists.

Controls (n = 695) were chosen by random digit dialing and from Health Care Financing Administration rosters.

Controls (n = 703) were identified through random digit dialing and were frequency matched to cases on age.

Methods: We surveyed 938 non-institutionalized adults aged 40 to 74 years, recruited by random digit dialing.

The poll, done by random digit dial technique, has a margin error of ±4.4%

Methods: We adapted a deterministic, continuous-time model of HIV transmission dynamics parameterized using a 2003 random digit dial study of Seattle MSM.

Controls (n = 695) were selected by random digit dialing and through the rosters of the Health Care Financing Administration.

We assessed persons' willingness to consider whole body donation in a standardized telephone survey of Maryland households, identified using random digit dialing.

Design and participants: We evaluated 1492 adults, aged 18-92 years, who were selected using random digit dialing.

Methods: A random digit dialing telephone survey of men living in selected neighborhoods of Seattle, Washington, was conducted from June through August 1992.

Methods: Using random digit dialing, a sample of 2167 adults was selected between 1999 and 2003, in Porto.

Controls (n = 574) were identified by random digit dialing, with a response proportion of 73.6 percent.

A total of 130 ET cases were patients at the Neurological Institute of New York, and 175 controls were ascertained by random digit dialing.