Colleen MacWilliam

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Mammography has been shown to be effective in decreasing breast cancer mortality. However, not all women receive recommended screening. The purpose of this study was to measure the effect of systemic health care delivery factors and patient demographic factors on the use of mammography among a population of women with insurance coverage for screening(More)
OBJECTIVE To identify factors associated with poor outcome after total hip replacement (THR) surgery. DATA SOURCES This article is the first to present results from the American Medical Group Association (AMGA) THR consortium. STUDY DESIGN The outcomes evaluated were pain and physical function. Eight patient risk factors were evaluated. These included(More)
OBJECTIVE To develop, within the framework of continuous quality improvement, new processes for offering mammography and determine whether protocols executed completely by nonphysicians would increase mammography utilization. DESIGN A prospective follow-up study with patients from an intervention clinic and two control clinics. SETTING Three general(More)
OBJECTIVES Fourteen patient-provided variables were chosen as potential predictors for improvement after total hip replacement surgery. These variables included patient demographic information, as well as preoperative physical function. METHODS A neural network was trained to predict the relative success of total hip replacement surgery using this(More)
Health care delivery institutions and providers, employers, and government agencies throughout the U.S. are sharing information and pooling resources in an attempt to produce reliable measurements of health outcomes. The rapid rate of growth in the collection and pooling of health outcomes data has prompted the need for standardization. The work of health(More)
PURPOSE We investigated from a theoretically motivated perspective what information differentiated sufficient from insufficient descriptions of objects provided by persons with aphasia. METHOD Twenty-one adults with aphasia consequent to single left-hemisphere stroke verbally described 9 living and 9 nonliving objects. Responses were scored for accuracy(More)
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