title: Multipractice studies: how representative are the participating doctors?
abstract: General practitioners participating in a multipractice study were compared with those who refused to participate. We found that younger doctors, doctors in partnerships, and doctors with many patients were represented more among participants. However, no correlation was found between the number of patients examined for urinary tract infection in connection with the study.
mesh_terms: D003625:Data Collection / Q000379:methods*; D005194:Family Practice; D006306:Health Surveys