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[[File:Glossary Icon-2.png|100px|frameless|right|link=ICRP Glossary]]
An epidemiological concept referring to a factor which modifies the magnitude of an effect of a primary exposure. Effect modifiers for radiation-induced cancers include sex, age at exposure and smoking. Unlike confounding, effect modification is a biological phenomenon in which the exposure has a different impact in different circumstances.
''Last Updated: February 2021''
'''Return to [[ICRP Glossary|Glossary]]'''
An epidemiological concept referring to a factor which modifies the magnitude of an effect of a primary exposure. Effect modifiers for radiation-induced cancers include sex, age at exposure and smoking. Unlike confounding, effect modification is a biological phenomenon in which the exposure has a different impact in different circumstances.
''Last Updated: February 2021''
'''Return to [[ICRP Glossary|Glossary]]'''