Evaluating non-randomised intervention studies
نویسندگان
چکیده
منابع مشابه
Evaluating non-randomised intervention studies.
OBJECTIVES To consider methods and related evidence for evaluating bias in non-randomised intervention studies. DATA SOURCES Systematic reviews and methodological papers were identified from a search of electronic databases; handsearches of key medical journals and contact with experts working in the field. New empirical studies were conducted using data from two large randomised clinical tri...
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BACKGROUND Spin represents specific reporting strategies, either intentional or unintentional, to convince the reader that the beneficial effect of the experimental intervention in terms of efficacy and safety is greater than that shown by the results. The objectives of this study were to 1) develop a classification of spin specific to non-randomized studies assessing an intervention and 2) est...
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3) As a quality control, especially when it is expected that an intervention may have less effect in practice than within the context of a carefully conducted RCT with highly selected patient populations and clinicians. For example, the effect of fibrinolytic therapy in myocardial infarction is closely related to the number of hours between onset of chest pain and start of treatment (5); hence,...
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INTRODUCTION This study evaluated an intervention for people with aphasia delivered in a novel virtual reality platform called EVA Park. EVA Park contains a number of functional and fantastic locations and allows for interactive communication between multiple users. Twenty people with aphasia had 5 weeks' intervention, during which they received daily language stimulation sessions in EVA Park f...
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ژورنال
عنوان ژورنال: Health Technology Assessment
سال: 2003
ISSN: 1366-5278,2046-4924
DOI: 10.3310/hta7270