MEASURING THE SIZE OF A TREATMENT EFFECT: RELATIVE RISK REDUCTION, ABSOLUTE RISK REDUCTION, AND NUMBER NEEDED TO TREATMEASURING THE SIZE OF A TREATMENT EFFECT: RELATIVE RISK REDUCTION, ABSOLUTE RISK REDUCTION, AND NUMBER NEEDED TO TREATHollands, Hussein MD, MS (epid); Kertes, Peter J. MD, CM, FRCS(C)Evidence-Based Ophthalmology 11(2):p 68-72, April 2010. | DOI: 10.1097/01.IEB.0000370570.60726.73 Buy Metrics © 2010 Lippincott Williams & Wilkins, Inc.