The concept of an individual threshold for the utilisation of primary care would explain how GPs use their knowledge of individual patients and their previous help-seeking behaviour for their diagnostic decision making. Whether the assumption behind this concept is valid, and whether its use improves diagnostic accuracy, remains to be investigated.
Keywordsclinical decision making; continuity of patient care; general practice; physician-patient relations; qualitative research. M Michiels-Corsten, MD, GP, research fellow; S Bösner, MD, MPH, GP, associate professor for general practice; N Donner-Banzhoff, MD, MHSc, GP, professor for general practice,