i had an amnio at 18 weeks due to 1:3 chance of trisomy 18. i am 40 years old.
first off my results came back absolutely perfect and i will NEVER get those tests again. soooo many people end up with more invasive procedures due to these blood tests. i think they need to perfect the tests a bit before suggesting them. not sure they are quite ready yet.
secondly - the amnio wasnt bad. i did a lot of research and i found that now that they are doing them with an u/s the m/c rate is like 1/1600.. hard to believe they actually did amnio's blind, isnt it?? the last risk studies were performed in the 1970's and most docs are still going by those stats.
here is a link i found.
https://www.parents.com/pregnancy/stages/amniocentesis/risk-of-miscarriage-from-amnio-low/
GL and keep us posted on how everything goes... honestly - the waiting is the absolute worst part
About those Down stats - you're right. And they're also based on a LOWER proportion of +35 year old women who had babies back then, as opposed to now. So the numbers were skewed population-wise.
The number of Down children born to mothers UNDER the age of 30 is actually HIGHER - because they have more babies to start with.
The so-called science of stats is more like - let's plug in a "statistical test", and if that one doesn't give us the answer we're looking for, we'll pick another and then another and just see what one gives us the desired result. Then we'll write our paper based on that answer.
I threw most stats out the window after taking a grad-level stats course. It convinced me that even the purest of numbers is biased, skewed, and partially contrived. I know we have to have some sort of basis for looking at the world, but I take them with a grain of salt. Especially Down babies - how many do you actually see out in public with their older parents? In ten years I can remember two. One was a baby and the other was a toddler. I see far more healthy babies (at least based on appearances). I'm more interested in what actual labs say and in real life experiences and not so-called scientists.
Risks are real, but our perception of those risks just may be skewed by lousy and practically antiquated mathematics.
Sort of an interloper - I'm only TTC #1, but given my age (few days shy of 38!) I do spy over here on occasion just to see what the latest and greatest is for this sort of thing. I consider what happens on this forum as more indicative of the REAL world for us +35s over a bunch of numbers in a journal. Oh, and when it's me on here, I'll be biting my nails just like the rest of you, because knowing a lot of details is MEANINGLESS when it's you in the MD's office, and as an RN I completely realize that. I'm not as blase as I might sound. I just try very hard to be realistic and remain as sane as possible (and I know when you're pregnant it goes right out the window, and that's okay and I'm ready for that - especially given how hard most of us at this age work to get to that point).
Also remember that sometimes docs call for extra tests because in this litigious age they feel they need to cover their butts from all angles.
Good luck to all of you - all of your pregnancies give me hope and keep me positive, and I rejoice, hope and FX with and for all of you! I only hope I'm welcome here.