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High Blood Pressure

February 5, 2016
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When doing vitals during a patient evaluation would it be a surprise to anyone to find a patient has hypertension? Of course not. Hypertension is extremely common. In fact it is estimated that worldwide 41% of those between 35 and 70 are hypertensive. Additionally, less than half of them aware they have the diagnosis....
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And Even More on Diagnostic Testing

January 19, 2016
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Our last two blog posts, by myself and my colleague John Stites, have dealt with issues related to diagnostic testing. I discussed the importance of cut-off points and how changing them affects the sensitivity and specificity of a test. John discussed the concept of...
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The Importance of a Cut-Off Point

January 4, 2016
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In the last column, my colleague Dr. John Stites provided additional insight into the concept of SpIN and SnOut, which are related to the larger concept of sensitivity and specificity. To remind you, sensitivity is the percentage of people who have the disorder in...
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Cautions on SpIn and SnOut

December 18, 2015
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Many of us have heard about SpIn and SnOut. The mnemonic helps to remind us that very Specific tests help to rule in a disorder (Sp = specific, In...
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At the Speed of Light

December 14, 2015
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I am reading a book which, on its surface, may seem to have little to do with evidence-based practice. The book is “Virtual Unreality,” by Charles Seife. It is...
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Some Thoughts on Evidence-Based Practice and Decision Making

November 30, 2015
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Dr. Tricia Greenhlagh has been someone who has immensely influenced my thinking. She is a professor of primary care health sciences at the University of Oxford, and she wrote...
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