A Twin Study of Sex Differences in Genetic Risk for All Dementia, Alzheimer’s Disease (AD), and Non-AD Dementia

Abstract

For All Dementia, AD Only, and Non-AD Dementia, genetic influences could be equated across sex. Co-twin analyses, however, suggest greater risk to female than to male co-twins of dementia cases even though sex differences in either genetic or shared environmental influences on the risk of dementia could not be differentiated.