do you have a source for this? This would be great ammo in most discussions if it could be backed up.
I remember the statistic from this book:
http://www.amazon.com/gp/product/0385311834/102-2684789-9244127?v=glance&n=283155
Here are some interesting statistics:
Sex offenders are more likely to be lefthanded.
"Ray Blanchard, the institute's head of clinical sexology services, has long been looking for clues to what makes molesters tick. Drawing on decades of case files (including the work of Kurt Freund, the pioneering Czech psychiatrist who set up the lab when he immigrated to Canada following the 1968 Soviet invasion), he and his colleagues have uncovered some surprising patterns among molesters. Men with a sexual preference for children are more likely to have suffered head injuries when they themselves were young. As a group, they have slightly lower IQs than the general population -- 90 on average, versus the societal norm of 100 -- and score lower on memory tests. And they are three times more likely to be left-handed. Almost 30 per cent of pedophiles are southpaws, versus eight to 12 per cent of the rest of the male population. The higher rate of left-handedness is important because it strongly suggests that pedophilia may have more to do with nature than nurture. Differences in intelligence could be explained by the simple notion that the smarter pedophiles are less likely to be caught. But a higher rate of left-handedness -- which develops in utero and has already been associated with a variety of neurological problems including Down's syndrome, epilepsy, autism and dyslexia -- hints that their brains may be structured differently."
http://www.amazon.com/gp/product/0385311834/102-2684789-9244127?v=glance&n=283155
Homosexuals are more likely to be lefthanded.
"Three Canadian researchers have shown that left-handedness is more common in gay men and in lesbian women than in comparable heterosexual persons. Drs. Martin L. Lalumière, Ray Blanchard, and Kenneth J. Zucker, of the Centre for Addiction and Mental Health (CAMH) and the University of Toronto, reached this conclusion by means of a meta-analysis -- a statistical technique for combining the results of many previous studies in order to reach a reliable conclusion.
The study, published in the July issue of Psychological Bulletin, combined the results from 23,410 heterosexual and homosexual men and women. The results for both sexes were statistically significant; however, the tendency toward increased levels of left-handedness was markedly greater for lesbian women than for gay men. "
http://www.sciencedaily.com/releases/2000/07/000710071931.htm