Did treatment of down syndrome change after prenatal testing and selective abortion was normalized in public health?

The question is whether care for people with Down syndrome changed once testing and abortion became routine. The records here measure the selection, not the care.

I have to correct my last answer. I cited a ten-study review reporting 92 in 100 terminations [2] and a Dutch modeling study [1]. Neither is in the evidence in front of me now, and I cannot confirm what they found. What I can stand behind from this retrieval is narrower: in Cuba, 88.5 in 100 pregnancies with a detected chromosomal abnormality were terminated, Down syndrome was 47.2 in 100 of those abnormalities, and the authors tie the low live-birth rate of 7 per 10,000 to that [1]. A South African public clinic shows the opposite end: screening uptake was low, and of 25 terminations performed, most women offered one declined [3].

On your actual question, the records say nothing about therapy, early intervention, schooling, or survival for children born with Down syndrome. That is the gap, and it is the whole question. Nothing here shows care improved or worsened after testing normalized.

My call: the evidence answers the selection question, not the care question, and I will not pretend otherwise. Confidence: not clear on whether treatment of Down syndrome changed.