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1 in 350 chance of baby having downs im 26

madamefifi21 Joined: 31/01/2010 Posts: 9 1 in 350 chance of baby having downs im 26

I have recieved my test results of my downs screening test. They measured the nuchal point which was 1.3mm and i had blood taken and i was told i had a 1 in 350 of the baby having downs. Im 26 years old. The letter i recieved said the risk is low for my baby. What is the cut off point for being low/high risk? No one has really told me anything and i feel a bit in the dark. I don't know if this is good or if i have just scraped through? Is there anyone who has had a similar result or can shed some light on the subject?

Natalie111 Joined: 15/04/2008 Posts: 258 Re: 1 in 350 chance of baby having downs im 26

I think low risk is 1 in 200+ but please dont quote me on that.  Give your miwife or gp a call in the morning, I'm sure they could clarify that over the phone.  Or possibly even nhs direct, they're on 0845 46 47.

Natalie x

quechelle Joined: 25/06/2009 Posts: 377 Re: 1 in 350 chance of baby having downs im 26

i read before from a post another mum wrote on another site that anything smaller then 3.0mm nuchal fold is good. and i also found this for you to read. :

The result of the test is expressed either in terms of a risk assessment (eg. 1 in 300) or as positive/negative. The latter is the hospital or laboratory's interpretation of the former. A result of 1 in 300 means that about 299 people with this result will not have an affected baby, and only one will. As you can see, it is NOT a test for the presence of a DS baby, but a way of comparing your chance of having one to the risk for age alone. So, a 40 year old woman would be very reassured by a result of 1 in 10,000 and a 20 year old woman may opt for amniocentesis if her result was 1 in 50.

Some laboratories don't give a result like this, but have a predetermined cut-off at which the test is considered postitive. A positive test signifies that amniocentesis is recommended. Most use the cut-off of 1 in 250 as being positive (i.e. a risk assessment of 1 in 251 would be negative and 1 in 249 would be a positive result).

in my letter it didnt say i was low risk it said i was "not high risk"....so mabey i just scraped into the lower risk. i was never told my 1 in however many chance. i have been told both pregnancies that if there is any concerns over my results they will call and have a meeting rather then send a letter through the post.  if your results were anything to worry about you would have been offerd an amniocentesis or some form of meeting or canceling. but like natalie said before if in doubt ask your mw or ring nhs :)

chelle,lilly(9months)& 24 1/2 week pink bump x

quechelle Joined: 25/06/2009 Posts: 377 Re: 1 in 350 chance of baby having downs im 26

just found this :

RELATIONSHIP OF DOWN SYNDROME INCIDENCE TO MOTHERS' AGE Mothers Age Incidence of Down Syndrome Under 30 Less than 1 in 1,000 30 1 in 900 35 1 in 400 36 1 in 300 37 1 in 230 38 1 in 180 39 1 in 135 40 1 in 105 42 1 in 60 44 1 in 35 46 1 in 20 48 1 in 16 49 1 in 12 Source: Hook, E.G., Lindsjo, A. Down Syndrome in Live Births by Single Year Maternal Age.

but its not all sumd up by age its also down to a blood test and nuchal scan. i also read that using maternal age alone will not detect over 75% of pregnancies that will result in Down syndrome, so infact when it states that 1-1,000 chance of downs in under 30's once it is added to the nuchal and bloods done its bound to be more then a 1-1,000 chance.

hope some of the info ive dug up is a bit helpful.  

mummynumba1 Joined: 09/02/2010 Posts: 47 Re: 1 in 350 chance of baby having downs im 26

hi there the thing u av got to remember is that ur letter said u were at low risk ov ur baby aving downs so i wouldnt worry too much about this if there was anything to worry about ur hospital would av been intouch with u for further tests. Just enjoy the rest ov ur pregnancy xxxx

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