Evidence Based Medicine; Positive and Negative Predictive Values of Diagnostic Tests
Journal Title: مجله طب اورژانس ایران - Year 2015, Vol 2, Issue 3
Abstract
در شماره 2، دوره 2، صفحات 105-107 مجله طب اورژانس ایران بعضی از ویژگی های تست های تشخیصی در قالب یک مقاله آموزشی با عنوان "پزشکی مبتنی بر شواهد؛ قسمت اول: تعریف و محاسبه ساده حساسیت، ویژگی و دقت یک تست" تعریف شده و نحوه محاسبه آنها بیان گردید (1, 2). مقاله حاضر قصد دارد تا دو ویژگی دیگر تست های تشخیصی شامل ارزش اخباری مثبت و منفی را مورد توجه قرار دهد. ارزش اخباری مثبت و منفی به ترتیب عبارتند از موارد مثبت و منفی حقیقی گزارش شده توسط یک تست. به بیانی دیگر این مقادیر بیان کننده این نکته هستند که اگر یک فرد با یک تست مورد آزمایش قرار بگیرد، احتمال مثبت یا منفی بودن حقیقی تشخیص در آنها چقدر است (3).
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- DOI 10.22037/ijem.v2i3.9496
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