Step 1 Biostats and ethics

Liberty University

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USMLE FULL SOLUTION PACK STEP 1 AND STEP 2 Bundled exams with complete solution.

USMLE FULL SOLUTION PACK STEP 1 AND STEP 2 Bundled exams with complete solution.
Package deal • 11 items • 2023

A 73-year-old man comes to the office with fatigue that has become progressively worse over the last several months. He is also short of breath when he walks up one flight of stairs. He drinks 4 vodka martinis a day. He complains of numbness and tingling in his feet. On physical examination he has decreased sensation of his feet. His hematocrit is

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Step 1 Biostats and ethics 2023 questions and answers(100% verified quiz bank)

Step 1 Biostats and ethics 2023 questions and answers(100% verified quiz bank)
Exam (elaborations) • 11 pages • 2023
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Step 1 Biostats and ethics Controlling confounders - ANSWER-There are 3 methods to control confounders in the design stage of a study ; matching, restriction and randomization. Restriction is a method that limits participation in the study to individuals who are similar in relation to the confounder. For example, a study restricted to non-smokers only will eliminate any confounding effect of smoking. However, a disadvantage of restriction is that it may be difficult to generalize to the re...