An intervention to increase patients' trust in their physicians. Stanford Trust Study Physician Group. Effects of a physician communication intervention on patient care outcomes.
To investigate the effect of a one-day workshop in which physicians were taught trust-building behaviors on their patients' levels of trust and on outcomes of care.
                In 1994, the study recruited 20 community-based family physicians and enrolled 412 consecutive adult patients from those physicians' practices. Ten of the physicians (the intervention group) were randomly assigned to receive a one-day training course in building and maintaining patients' trust. Outcomes were patients' trust in their physicians, patients' and physicians' satisfaction with the office visit, continuity in the patient-physician relationship, patients' adherence to their treatment plans, and the numbers of diagnostic tests and referrals.
                Physicians and patients in the intervention and control groups were similar in demographic and other data. There was no significant difference in any outcome. Although their overall ratings were not statistically significantly different, the patients of physicians in the intervention group reported more positive physician behaviors than did the patients of physicians in the control group.
                The trust-building workshop had no measurable effect on patients' trust or on outcomes hypothesized to be related to trust. To determine whether an intervention designed to improve patient-physician communication increases the frequency with which physicians elicit patients' concerns, changes other communication behaviors, and improves health care outcomes.
                Pretest-posttest design with random assignment of physicians to intervention or control groups.
                General medicine clinics of a university-affiliated Veterans Affairs Hospital.
                Forty-two physicians and 348 continuity care patients taking prescription medications for chronic medical conditions.
                Intervention group physicians received 4.5 hours of training on eliciting and responding to patients' concerns and requests, and their patients filled out the Patient Requests for Services Questionnaire prior to a subsequent clinic visit. Control group physicians received 4.5 hours of training in medical decision-making.
                The frequency with which physicians elicited all of a patient's concerns increased in the intervention group as compared with the control group (p = .032). Patients perceptions of the amount of information received from the physician did increase significantly (p < .05), but the actual magnitude of change was small. A measure of patient satisfaction with the physicians was high at baseline and also showed no significant change after the intervention. Likewise, the intervention was not associated with changes in patient compliance with medications or appointments, nor were there any effects on outpatient utilization.
                A low-intensity intervention changed physician behavior but had no effect on patient outcomes such as satisfaction, compliance, or utilization. Interventions may need to focus on physicians and patients to have the greatest effect.
Overall there remains insufficient evidence to conclude that any intervention may increase or decrease trust in doctors. Further trials are required to explore the impact of policy changes, guidelines and specific doctors' training on patients' trust.