Meanings of eligible physicians in English

The recruitment team had difficulty identifying, contacting, and recruiting eligible physicians.

Participants: A sample of 300 primary care physicians in 1991; of 285 eligible physicians 185 (65%) responded.

The authors identified eligible physicians by analyzing Medicare Part B claims data, a publicly available physician database, and office staff responses to telephone inquiries.

Results: The number of eligible physicians identified was 1870 in pre-intervention and 1763 in post-intervention surveys, and we obtained 911 and 706 responses.