ABFM Epidemiology Review Exam With 100% Correct Answers 2025

ABFM Epidemiology Review Exam With 100% Correct Answers 2025 what is Relative Risk? - answer-1. ratio of outcome incidence in exposed to unexposed. 2. experimental event rate (exposed) divided by control event rate (not exposed) equation 1: Relative Risk R R - answer-R R = E E R divided by C E R ( RR = EER / CER ) Relavtive Risk Reduction R R R - answer-R R R = C E R - E E R, all divided by C E R (RRR = (CER - EER)/CER)) equation 2: Absolute Risk Reduction: A R R - answer-A R R = C E R minus E E R ( ARR=CER-EER) Equation 3: Number Needed to Treat N N T - answer-N N T = 1 divided by A R R (NNT=1/ARR) Equation 4: Sensitivity - answer-Ability to detect people who have the disease - the percent True Positives. Use for screening - rule out disease. ELISA for H I V - don't want to miss anyone. Sensitivity - answer-percent true positives (Sensitivity = TP / ( TP + FN ) x 100)