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A large number of taxonomies are used to rate the quality of an individual study and the strength of a recommendation based on a body of evidence. We have developed a new grading scale that will be used by several family medicine and primary care journals (required or optional), with the goal of allowing readers to learn one taxonomy that will apply to many(More)
OBJECTIVE To develop a taxonomy of doctors' questions about patient care that could be used to help answer such questions. DESIGN Use of 295 questions asked by Oregon primary care doctors to modify previously developed taxonomy of 1101 clinical questions asked by Iowa family doctors. SETTING Primary care practices in Iowa and Oregon. PARTICIPANTS(More)
OBJECTIVES To characterise the information needs of family doctors by collecting the questions they asked about patient care during consultations and to classify these in ways that would be useful to developers of knowledge bases. DESIGN Observational study in which investigators visited doctors for two half days and collected their questions. Taxonomies(More)
OBJECTIVE To identify the most frequent obstacles preventing physicians from answering their patient-care questions and the most requested improvements to clinical information resources. DESIGN Qualitative analysis of questions asked by 48 randomly selected generalist physicians during ambulatory care. MEASUREMENTS Frequency of reported obstacles to(More)
BACKGROUND There is significant heterogeneity in reported sensitivities and specificities of diagnostic serological assays for Chagas disease, as might be expected from studies that vary widely according to setting, research design, antigens employed, and reference standard. The purpose of this study is to summarize the reported accuracy of serological(More)
STUDY OBJECTIVE The objective of this study is to systematically review the accuracy of the Alvarado score and Pediatric Appendicitis Score and to identify optimal cutoffs for low- and high-risk populations. METHODS We performed a systematic review of the literature and identified 26 studies of the accuracy of the Alvarado score and Pediatric Appendicitis(More)
BACKGROUND Individual signs and symptoms are of limited value for the diagnosis of influenza. OBJECTIVE To develop a decision tree for the diagnosis of influenza based on a classification and regression tree (CART) analysis. METHODS Data from two previous similar cohort studies were assembled into a single dataset. The data were randomly divided into a(More)