Abstract
An association between APOE genotype and left-handedness has been previously reported. We examined whether such association exists in a population sample of 4438 unrelated Caucasian adults aged 45–69 years (2022 males and 2416 females). Left-handedness was based on self-reported left-hand dominance for writing (prevalence 4.9%) and on consistently higher left-hand grip strength in two repeated measurements (prevalence 12.2%). Individuals with higher left hand grip strength were seven times more likely to be self-reported left handers (p<.0001, χ2 159.7, 2 df). There were no differences in the proportion of self-reported left-handedness (p=.828, χ2 2.1, 5 df) or higher grip strength in left hand (p=.557, χ2 3.9, 5 df) between APOE genotypes. The lack of association was similar in both genders and did not differ by age group. The results suggest that left-handedness in adults is not related to APOE genotype.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Laterality: Asymmetries of Body, Brain and Cognition
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
