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Biomedical subjects

D E Forsythe

Publications and source records attributed to D E Forsythe.

4 recordsLinked to original sources

Expanding the concept of medical information: an observational study of physicians' information needs.

Obtaining and managing clinically relevant information constitutes a major problem for physicians, for which the development of automated tools is often proposed as a solution. However, designing and implementing appropriate automated solutions presumes knowledge of physicians' information needs. We describe an empirical study of information needs in four clinical settings in internal medicine in a university teaching hospital. In contrast to the retrospective data often used in previous studies, this research used ethnographic techniques to facilitate direct observation of communication about information needs. On the basis of this experience, we address two main issues: how to identify and interpret expressions of information needs in medicine and how to broaden our conception of "information needs" to account for the empirical data.

Computer Systems

Using ethnography to build a working system: rethinking basic design assumptions.

The problem of user acceptance of knowledge-based systems is a current concern in medical informatics. User acceptance should increase when system-builders understand both the needs of potential users and the context in which a system will be used. Ethnography is one source of such understanding. This paper describes the contribution of ethnography (and an anthropological perspective) during the first year of a three-year interdisciplinary project to build a patient education system on migraine. Systematic fieldwork is producing extensive data on the information needs of migraineurs. These data call into question some of the assumptions on which the project was based. While it is not easy to rethink our assumptions and their implications for design, using ethnography has enabled us to undertake this process relatively early in the project at a time when redesign costs are low. This should greatly improve our chances of building a system that meets the needs of real users, thus avoiding the troublesome problem of user acceptance.

Anthropology, Cultural

Physicians' information needs: analysis of questions posed during clinical teaching.

OBJECTIVE: To describe information requests expressed during clinical teaching. SETTING: Residents' work rounds, attending rounds, morning report, and interns' clinic in a university-based general medicine service. SUBJECTS: Attending physicians, medical house staff, and medical students in a general medicine training program. METHODS: An anthropologist observed communication among study subjects and recorded in field notes expressions of a need for information. We developed a coding scheme for describing information requests and applied the coding scheme to the data recorded. Based on assigned codes, we created a subset of strictly clinical requests. MEASUREMENTS: Five hundred nineteen information requests recorded during 17 hours of observed clinical activity were selected for detailed analysis. These requests related to the care of approximately 90 patients by 24 physicians and medical students. Sixty-five requests were excluded because they were not strictly clinical, leaving a subset of 454 clinical questions for analysis. MAIN RESULTS: On average, five clinical questions were raised for each patient discussed. Three hundred thirty-seven requests (74%) concerned patient care. Of these 337 questions, 175 (52%) requested a fact that could have been found in a medical record. Seventy-seven (23%) of these questions, motivated by the needs of patient care, were potentially answerable by a library, a textbook, a journal, or MEDLINE. Eighty-eight (26%) of the questions asked for patient care required synthesis of patient information and medical knowledge. CONCLUSIONS: Clinicians in the study settings requested information frequently. Many of these information needs required the synthesis of patient information and medical knowledge and thus were potentially difficult to satisfy. A typology is proposed that characterizes information needs as consciously recognized, unrecognized, and currently satisfied.

Education, Medical

Broadening our approach to evaluating medical information systems.

Evaluation in medical informatics tends to follow the paradigm of controlled clinical trials. This model carries with it a number of assumptions whose implications for medical informatics deserve examination. In this paper, we describe the conventional wisdom on evaluation, pointing out some of its underlying assumptions and suggesting that these assumptions are problematic when applied to some aspects of evaluation. In particular, we believe that these assumptions contribute to the problem of user acceptance. We then suggest a broader approach to evaluation, offering some conceptual and methodological distinctions that we believe will be of use to the medical informatics community in rethinking this issue.

Bias