How do fertility treatments affect the likelihood of higher-order multiple pregnancies?

... twins, then you are more likely than other people to give birth to fraternal twins, too. The percent of people who are twins differs by race and ethnicity. Dec 25, 1986 ... ... percent, closely paralleling the concordance rate in dizygotic twins. To the extent that the difference in concordance rates between ... Dec 7, 2022 ... † Percent change between years was statistically significant; p < 0.05. NOTE: Twin birth rate is the number of twins per 1,000 total births. Jan 1, 2006 ... The proportion of population risk in major depression attributable to genetic factors appears to be moderately greater in women than in men. Sep 20, 2019 ... ... percent of the population) than non-identical twins. Twins have much that's special about them, but one somewhat surprising finding about ... Mar 11, 2021 ... One in every 42 children is born a twin and much has changed over the past 30 years, a report finds. Oct 12, 2009 ... While they represent just 2 percent of the general population, twins make up 7.4 percent of the nation's cerebral palsy sufferers. 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 ... Nobody knows what causes identical (monozygotic) twins. Everyone has the same chance of having identical twins: about 1 in 250. Identical twins do not run in ... Nov 2, 2023 ... ... percentage of successful pregnancies at that age results in twins. ... twins is in the Asian population, and it's higher in the Black population.