What are the challenges of conducting longitudinal studies with twins?

Dec 17, 1991 ... ... twins, compared with 11 percent of genetically unrelated brothers," said J. ... twins in the general population. Gregory Carey, an assistant ... This visualization illustrates the percentage distribution of the population according to the highest educational level reached. You can filter the data by ... Feb 17, 2011 ... King and McDonald (1992) attend at great length to the sexual interrelations of their twin population. Their finding that 15% of their twins ... In rheumatoid arthritis patients of European ancestry, as many as 60–70% carry the HLA-DR4 gene, compared with 30% in the general population. Twin studies ... Oct 11, 2017 ... Because births of twins are rising and many people find twins fascinating, Dr ... Around 40 percent of twins make up their own languages. Jan 5, 2016 ... ... proportion of variance in cancer risk due to ... The cohort includes 357 377 individual twins from the population-based twin ... Oct 1, 2015 ... Left-handedness is more likely to occur in twins than in single individuals. Only about 10% of people in the general population are left-handed. Dec 25, 1986 ... ... percent, closely paralleling the concordance rate in dizygotic twins. To the extent that the difference in concordance rates between ... Nov 5, 2013 ... Fraternal twins, on the other hand—people ... 10 percent of the population at large, and a whopping 80 percent of schizophrenics smoke. Mar 15, 2023 ... Fraternal twins happen because some people release two eggs (or more) at a time. That's called superovulation. Advertisement. If two sperm ...