10 Down syndrome facts

accreditation

How much do you really know about Down syndrome? Take three minutes and brush up your knowledge.

Down syndrome is a chromosomal disorder arising at the time of conception.

  • There is an extra number 21 chromosome (Trisomy 21) which causes delays in physical and intellectual development.  
  • Children who have Down syndrome have broad and flat faces, flattened nose bridges and slanting eyes. They used to be called ‘mongoloid’ because of this Eastern appearance.
  • The incidence of Down syndrome is estimated to be one in every 1 000 live births in developed countries and one in every 650 live births in developing countries.
  •  More than 80% of children with Down Syndrome are currently being born to mothers under the age of 35.
  • Due to advanced medical care, the majority of people born with Down syndrome today have a life expectancy of approximately fifty-five years.
  • The majority of people with Down syndrome fall in the mild to moderate range of intellectual disability. 
  • Their average IQ is 50, as opposed to a 100 in children who are not mentally impaired. 
  • Some children are much more severely affected than others and some kids with Down syndrome manage to cope in normal schools. 
  • Several tests can be done on pregnant women to determine their risk of having a Down syndrome baby. A positive screening test can be followed up by an amniocentesis.

(Source: Down Syndrome South Africa)

(Health24, October 2012)

Read more:

Down syndrome real life story

We live in a world where facts and fiction get blurred
In times of uncertainty you need journalism you can trust. For 14 free days, you can have access to a world of in-depth analyses, investigative journalism, top opinions and a range of features. Journalism strengthens democracy. Invest in the future today. Thereafter you will be billed R75 per month. You can cancel anytime and if you cancel within 14 days you won't be billed. 
Subscribe to News24
Voting Booth
What are your thoughts on the possibility of having permanent Stage 2 or 3 load shedding?
Please select an option Oops! Something went wrong, please try again later.
Results
I'll take that over constant schedule changes
13% - 1273 votes
Why are we normalising Eskom’s mess?
72% - 7118 votes
I've already found alternative ways of powering my home/business
15% - 1472 votes
Vote
Rand - Dollar
17.10
-0.4%
Rand - Pound
20.94
+0.8%
Rand - Euro
18.66
+0.4%
Rand - Aus dollar
12.10
+0.6%
Rand - Yen
0.13
-0.6%
Platinum
1,021.58
+1.0%
Palladium
1,651.21
-1.1%
Gold
1,913.20
-1.9%
Silver
23.47
-2.1%
Brent Crude
82.84
-3.2%
Top 40
73,629
-0.1%
All Share
79,802
-0.0%
Resource 10
74,686
-0.6%
Industrial 25
102,624
+0.1%
Financial 15
16,551
-0.0%
All JSE data delayed by at least 15 minutes Iress logo
Editorial feedback and complaints

Contact the public editor with feedback for our journalists, complaints, queries or suggestions about articles on News24.

LEARN MORE