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C M Clancy

Publications and source records attributed to C M Clancy.

9 recordsLinked to original sources

Physicians as gatekeepers. The impact of financial incentives.

Incentives encouraging physicians to reduce their use of diagnostic tests are controversial. We studied physicians enrolled in an independent practitioner association who see both fee-for-service and prepaid (health maintenance organization [HMO]) patients concurrently. We asked the following questions: (1) Do physicians order fewer tests for their patients enrolled in an HMO relative to their patients seen on a fee-for-service basis? (2) Are any reductions in testing selective or indiscriminate? We reviewed the charts of 273 new patients, 167 enrolled in a fee-for-service system and 106 enrolled in an HMO, who were seen by 17 physicians "for a check-up," and graded test use as "indicated" or "discretionary." We used multiple logistic regression to control for the effects of patient age and sex. Patients in the HMO underwent fewer tests than did patients in the fee-for-service system, as well as fewer discretionary tests, but received the same proportion of preventive services. We conclude that physicians ordered fewer tests for patients in the HMO, apparently because of selective omission of discretionary tests. Physicians also did not reduce preventive services for patients in the HMO relative to all other physicians.

Adult

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Canada

Guiding individual decisions: a randomized, controlled trial of decision analysis.

In early 1983, all 1,280 faculty and resident physicians at one hospital who were eligible to be vaccinated against hepatitis B were divided randomly into three groups: Group 1 physicians received general information about the risks and benefits of alternative vaccine decisions; Group 2 physicians were additionally invited to provide personal information for an individualized decision analysis (12.6 percent responded); and Group 3 physicians, who served as controls, were not contacted. In one year's follow-up, 20 percent of physicians were screened for hepatitis B antibody or vaccinated. More Group 2 physicians whose decision analyses recommended screening or vaccination took these actions (39 percent) than any other group. Group assignment remained significantly associated with vaccine decisions after analyzing results by the "intention to treat" principle, and after adjusting for training status, exposure to blood and blood products, and pre-study intentions about the vaccine. Despite the low overall vaccine acceptance rate, it is concluded that individualized decision analysis can influence the clinical decisions taken by knowledgeable and interested patients.

Clinical Trials as Topic

Rational decision making based on history: adult sore throats.

Primary care physicians are often required to make preliminary evaluations based only on the patient's history, especially during telephone encounters about sore throats. The authors studied adults with sore throats to determine whether patients can be stratified into higher and lower risks of strep throat by history alone. They first obtained data from 517 patients seen in an emergency room. Providers graded symptoms on a four-point scale (absent, mild, moderate, or severe). Initial analyses showed that prediction based on history should include three variables: fever, difficulty in swallowing, and cough. For ease of computation, these were consolidated into one score, "history" (= fever history + difficulty in swallowing - cough). This score was used to develop a model that predicts the probability of infection with group A beta-hemolytic streptococcus, and the model's performance was tested in two additional patient groups. The predictive accuracy of the "history" score was confirmed in all patient groups, despite differences in providers and disease prevalences. Primary care physicians may use this model to help them make decisions in situations such as telephone encounters without using additional data.

Adult

A strategy to improve the utilization of pneumococcal vaccine.

OBJECTIVE: To evaluate the effectiveness of a computerized reminder for pneumococcal vaccination at hospital discharge and to determine patient and physician characteristics associated with increased use of the vaccine. DESIGN: Pre- and postintervention study. SETTING: All medical services in a university teaching hospital. PARTICIPANTS: All patients with at least one indication for pneumococcal vaccination discharged from the hospital during one of two three-month time periods; resident and faculty physicians caring for the same patients. INTERVENTIONS: Incorporation of a predischarge reminder for pneumococcal vaccination in the hospital information system. MEASUREMENTS AND MAIN RESULTS: Of 539 eligible patients discharged during the three months after the intervention, 244 (45%) received the vaccine compared with 16 of 474 (3.4%) before the intervention (p less than 0.0001). Following the intervention, patients discharged with a diagnosis of alcoholism were more likely to receive the vaccine than were those without that diagnosis (58.1% vs. 42.7%, p less than 0.05), while patients with a diagnosis of cancer were less likely to get the vaccine (42 of 130, or 32.3%) than were those without cancer (202 of 409, 49.3%) (p less than 0.01). Patients whose attending physicians specialized in hematology-oncology or cardiology were also less likely to receive the vaccine than were all other patients. With the intervention in place, physicians were more likely to vaccinate patients with more than one indication for pneumococcal vaccine. CONCLUSIONS: 1) A predischarge reminder is an inexpensive, effective method to improve physicians' utilization of pneumococcal vaccine in high-risk patients; 2) additional improvements in pneumococcal vaccine utilization will require selective components directed toward specific diagnoses or attending physician subspecialities.

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