The effect of physician behavior on the collection of data.

Determining the patient's major reasons for seeking care is of critical importance in a successful medical encounter. To study the physician's role in soliciting and developing the patient's concerns at the outset of a clinical encounter, 74 office visits were recorded. In only 17 (23%) of the visits was the patient provided the opportunity to complete his or her opening statement of concerns. In 51 (69%) of the visits the physician interrupted the patient's statement and directed questions toward a specific concern; in only 1 of these 51 visits was the patient afforded the opportunity to complete the opening statement. In six (8%) return visits, no solicitation whatever was made. Physicians play an active role in regulating the quantity of information elicited at the beginning of the clinical encounter, and use closed-ended questioning to control the discourse. The consequence of this controlled style is the premature interruption of patients, resulting in the potential loss of relevant information.