Our findings suggest that the race and sex of a patient independently influence how physicians manage chest pain.

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Recent articles on clinical decision-making have proposed sophisticated quantitative methods for improving the physician's clinical judgment. Actual clinical decisions, however, are influenced by interactions between the clinician, the patient, and the sociocultural milieu as well as by biomedical considerations. This paper explores these sociologic influences on the decision-making process. Four types of sociologic factors influence the clinician's judgment: the characteristics of the patient; the characteristics of the clinician; the clinician's interaction with his profession and the health care system; and the clinician's relationship with the patient. To illustrate sociologic influences on clinical decision-making, this paper presents observations from the literature of sociology, clinical psychology, psychiatry, and medicine. Further studies are needed to provide additional empirical information.

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CSP #221 is a randomized multiinstitutional clinical trial to assess the efficacy of 10 d of perioperative total parenteral nutrition (TPN) in reducing morbidity and mortality in malnourished patients undergoing intraperitoneal and/or intrathoracic operations. In this paper a detailed protocol for the clinical efficacy trial is presented primarily as a reference document for use in interpretation of the results of the clinical trial. It is also anticipated, however, that review of this protocol may be useful to other investigators planning future clinical nutrition intervention trials.

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