For instance, the chance of having a baby with Down syndrome is one in 378 for a 35-year-old woman and increases to one in 30 for a 45-year-old woman
Varying statistics reported by our users:2 percent of the world's population has Down syndrome.According to Wikipedia, 0.1-0.125 % of babies who are born have Down syndrome (1 in every 800-1000 births).The overall incidence of Down syndrome is 1:660 newborns, thereby making it the most common genetically diverse configuration in humans.Research shows that 1:800-1000 people (approximately 900) are born with Down syndrome. If you compare this with the number of people on earth - 6.5 billion - then there are about 7,222,222 people with Down syndrome. This is about 0.11111110769231% of the approximate population of earth.According to scientific data, Down syndrome occurs in 1 out of every 750 births. The incidence, however, increases dramatically with increasing maternal age. If you look at the Related link below, you will see that, under about age 30, there is a 1:1000 chance in having a child with Down syndrome; at age 40, however, there is about a 1:100 chance. This increases to 1:10 by age 50.Approximately 1:800-1,000 babies are born with Down syndrome.The overall incidence of Down syndrome is 1:660 newborns.
* Down syndrome, caused by trisomy of the 21st chromosome, overall is seen in about 1 in 750 live births. The incidence, however, increases dramatically with increasing maternal age. If you look at the link below, under about age 30, there is a 1:1000 chance in having a child with Down syndrome, however, at age 40, there is about a 1:100 chance. This increases to 1:10 by age 50. 80% of all children with Down syndrome are born to women under the age of 30, however, because women of this age group have children at a much higher rate than those over 30. * Approximately 1 in 800-1,000 babies are born with Down syndrome. * The overall incidence of Down's syndrome is 1 in 660 newborns, thereby making it the most common pattern of malformation in man. === === * According to scientific data, Down syndrome occurs in 1 out of every 750 births.
That is hard to say because the frequency of Down syndrome if a function of maternal age so it is not fixed. A mom between 20 and 24 years old has a 1/ 1400 risk of having a child with Down syndrome. A mom who is 45 or older has a 1/25 risk. Overall, it is fair to say Down syndrome is one of the most common and best known genetic disease. Other genetic disease such as Cystic Fibrosis, hemochromatosis are also common. The frequency of all these things varies in different populations as well as age. So the question is quite hard to answer without isolating a specific population.
It has been estimated that just over 40% of the US population over the age of 50 have metabolic syndrome. This number is growing!
Someone's age
Down's syndrome is increased with advanced maternal age, which is defined as more than 35 years of age.
http://www.ds-health.com/risk.htm
Having a sibling with Down syndrome does not directly increase the chances of giving birth to a child with Down syndrome. The risk is influenced by maternal age, not family history. If both parents are carriers of the genetic translocation for Down syndrome, the risk may be higher.
The causes and risks factors are maternal age. Have babies at early age as the risks increases with age. About 1:2000 live births in age 20 to 1:300 at age 35 to 1:40 at age 45.
The likelihood of having a baby with Down syndrome increases with maternal age, with the risk increasing after the age of 35. At the age of 23, the probability of having a baby with Down syndrome is very low compared to older ages, but there is still a small risk. Prenatal screening tests can provide more information about the specific risk based on individual circumstances.
The only maternal characteristic to show a strong enough association to imply any causation is advanced maternal age, some sources reporting >35 years and some up to >45 years.
The prevalence of Down Syndrome worldwide is estimated to be around 1 in 1,000 live births. This prevalence can vary depending on factors such as maternal age. With advances in medical care and increased awareness, individuals with Down Syndrome are living longer, contributing members of society.
I would say no. Down Syndrome is caused by an extra chromosome (extra pair of chromosome 21). If anyone has three chromosomes 21, they have Down; you can't have "latent Down" and transmit it to your children. What increases the risk for Down most is older parental age, especially maternal (>35, and especially >40). Most standard prenatal screenings now can detect Down in the fetus very early on.
Maternal age influences the odds of conceiving a baby with Down syndrome.The incidence of Down syndrome in a woman under 30 is approximately 1:1,000, according to the National Institutes for Health (NIH). This increases to approximately 1:400 by the age of 35, and to 1:12 by age 49.Some breakdown figures from our contributorsAt the maternal age of 20-24, the probability is 1:1562At 37, the odds of having a child with Down syndrome are about 1:170 (according to my doctor from a top-ranked hospital as of Dec 2008).At age 35-39, the probability is 1:214Above age 45, the probability is 1:19.
There are no vaccinations available. The causes and risks factors are maternal age. Have babies at early age as the risks increases with age. About 1:2000 live births in age 20 to 1:300 at age 35 to 1:40 at age 45.
Down Syndrome-the rest is on wikipedia
No age group is affected; Down syndrome is a chromosome condition that is with you at birth.