The objective of the study was to measure the change in physicians' at
titudes toward preventive care guidelines over a 2-year period, The st
udy was conducted at a Southern California managed care medical group
that was experiencing intense price competition, We analyzed individua
lized survey responses of 62 HMO primary care physicians over the stud
y period. We found that physicians increasingly believed that clinical
guidelines were being used for cast containment (first survey 71% vs
second survey 92%, p < .005) and less for quality improvement (first s
urvey 85% vs second survey 67%, p < .008) over time. These findings ma
y create a barrier to physicians' adoption of practice guidelines.