On efficient estimation and correct inference in models with generated regressors: a general approach
In: Working papers in economics and econometrics 211
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In: Working papers in economics and econometrics 211
In: Working papers in economics and econometrics 210
In: Econometrics
Mackenzie, Colin, H. H. (Horace Hayman) Wilson, and India) Government Oriental Manuscripts Library (Tamil Nadu. The Mackenzie Collection: A Descriptive Catalogue of the Oriental Manuscripts, and Other Articles Illustrative of the Literature, History, Statistics and Antiquities of the South of India. 2d ed. Madras: Higginbotham, 1882. Mackenzie, Colin, 1753?-1821. Oriental literature.
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In: Mackenzie , C F , Tisherman , S A , Shackelford , S , Sevdalis , N , Elster , E & Bowyer , M W 2019 , ' Efficacy of Trauma Surgery Technical Skills Training Courses ' , Journal of Surgical Education , vol. 76 , no. 3 , pp. 832-843 . https://doi.org/10.1016/j.jsurg.2018.10.004
OBJECTIVE: Because open surgical skills training for trauma is limited in clinical practice, trauma skills training courses were developed to fill this gap, The aim of this report is to find supporting evidence for efficacy of these courses. The questions addressed are: What courses are available and is there robust evidence of benefit? DESIGN: We performed a systematic review of the training course literature on open trauma surgery procedural skills courses for surgeons using Kirkpatrick's framework for evaluating complex educational interventions. Courses were identified using Pubmed, Google Scholar and other databases. SETTING AND PARTICIPANTS: The review was carried out at the University of Maryland, Baltimore with input from civilian and military trauma surgeons, all of whom have taught and/or developed trauma skills courses. RESULTS: We found 32 course reports that met search criteria, including 21 trauma-skills training courses. Courses were of variable duration, content, cost and scope. There were no prospective randomized clinical trials of course impact. Efficacy for most courses was with Kirkpatrick level 1 and 2 evidence of benefit by self-evaluations, and reporting small numbers of respondents. Few courses assessed skill retention with longitudinal data before and after training. Three courses, namely: Advanced Trauma Life Support (ATLS), Advanced Surgical Skills for Exposure in Trauma (ASSET) and Advanced Trauma Operative Management (ATOM) have Kirkpatrick's level 2-3 evidence for efficacy. Components of these 3 courses are included in several other courses, but many skills courses have little published evidence of training efficacy or skills retention durability. CONCLUSIONS: Large variations in course content, duration, didactics, operative models, resource requirements and cost suggest that standardization of content, duration, and development of metrics for open surgery skills would be beneficial, as would translation into improved trauma patient outcomes. Surgeons at all levels of training and experience should participate in these trauma skills courses, because these procedures are rarely performed in routine clinical practice. Faculty running courses without evidence of training benefit should be encouraged to study outcomes to show their course improves technical skills and subsequently patient outcomes. Obtaining Kirkpatrick's level 3 and 4 evidence for benefits of ASSET, ATOM, ATLS and for other existing courses should be a high priority.
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The United States currently faces several new, concurrent large-scale health crises as a result of terrorist activity. In particular, three major health issues have risen sharply in urgency and public consciousness—bioterrorism, the threat of widespread delivery of agents of illness; mass disasters, local events that produce large numbers of casualties and overwhelm the usual capacity of health care delivery systems; and the delivery of optimal health care to remote military field sites. Each of these health issues carries large demands for the collection, analysis, coordination, and distribution of health information. The authors present overviews of these areas and discuss ongoing work efforts of experts in each.
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In: Human factors: the journal of the Human Factors Society, Band 38, Heft 4, S. 636-645
ISSN: 1547-8181
To elicit components of task complexity in emergency medical care, a study was conducted to contrast one medical procedure with two levels of task urgency in trauma patient resuscitation. Videotapes of actual resuscitation were reviewed to extract task characteristics of the procedure. Two levels of urgency were compared in the following areas: patient status, technical difficulty of tasks, the amount of available patient monitoring information, and the pace of work. Four components of task complexity in emergency medical care were identified: multiple and concurrent tasks, uncertainty, changing plans, and compressed work procedures and high workload. These components of task complexity pose challenges to team functions and can lead to problems in team coordination, such as conflicts in goals, tasks, and access to the patient. Training to increase explicit communications and improvements in the design of work procedures are necessary in order to meet the challenges of task complexity.
In: Human factors: the journal of the Human Factors Society, Band 38, Heft 4, S. 623-635
ISSN: 1547-8181
We compared the performance deficiencies of airway management captured by three types of self-reports with those identified through video analysis. The three types of self-reports were the anesthesia record (a patient record constructed during the course of treatment), the anesthesia quality assurance (AQA) report (a retrospective report as a part of the trauma center's quality assurance process), and a posttrauma treatment questionnaire (PTQ), which was completed immediately after the case for the purposes of this research. Video analysis of 48 patient encounters identified 28 performance deficiencies related to airway management in 11 cases (23%). The performance deficiencies took the form of task omissions or practices that lessened the margin of patient safety. In comparison, AQA reports identified none of these performance deficiencies, the anesthesia records identified 2 (of 28), and the PTQs suggested contributory factors and corrective measures for 5 deficiencies. Furthermore, video analysis provided information about the context of and factors contributing to the identified performance deficiencies, such as failures in adherence to standard operating procedures and in communications.
Collection now in Government Oriental Manuscripts Library, Madras. ; Mode of access: Internet.
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