Down Syndrome Guides

Topic Library · Down Syndrome Guides

Down syndrome, health surveillance and the adult years nobody planned for

Life expectancy in Down syndrome has gone from about 9 years in 1900 to roughly 60 today, and most of the Australian service system is still organised around early intervention. These guides cover the part that has been left behind: the screening schedule that goes unfollowed, the sleep apnoea that affects almost everyone, the dementia that arrives in the forties, the regression disorder that gets mistaken for behaviour, and the housing decisions families make a decade too late. Written by a registered provider, with the figures cited and the uncertain parts named as uncertain.

13,000–15,000

People with Down syndrome in Australia, 2019 estimate

12,561

NDIS participants with Down syndrome, March 2022

~60 yrs

Average life expectancy — up from 28 in 1984

Of adults over 25 in open employment, against 54% of all participants

What Down syndrome is, and getting into the scheme

The genetics without the jargon, the Australian numbers, and the eligibility quirk that catches families out.

Guide · 13 min readWhat Is Down Syndrome? A Plain-English Guide for Australian FamiliesThe three genetic types and their proportions, the Australian prevalence and NDIS numbers, how life expectancy went from 9 years to 60, the health profile, and the language that gets used well and badly.

Guide · 13 min readDown Syndrome and the NDIS: Why the Diagnosis Alone Is Not EnoughDown syndrome is on List B, not List A — which most provider websites get wrong. What that changes about your access request, the List A route that does exist, and the 2026–27 funding changes to diarise.

The health surveillance nobody owns

A known list of treatable conditions, a published schedule, and a system with nobody responsible for following it.

Guide · 14 min readThe Down Syndrome Health Checks Nobody Tells You AboutA screening schedule for every age band, the adult recommendations in full, how to use the Medicare annual health assessment and CHAP, and the twelve things that are not Down syndrome but look exactly like it.

Guide · 13 min readSleep Apnoea and Down Syndrome: The Most Under-Treated Problem in Australian Disability SupportTwo in three people have it on objective testing, and 53% of those with no symptoms at all. Why adenotonsillectomy only halves it, what CPAP adherence really looks like, and the nine points of verbal IQ at stake.

When function changes

Two distinct conditions, both routinely misread as behaviour, with completely different age profiles and answers.

Guide · 14 min readAlzheimer’s Disease and Down Syndrome: What Families and Providers Have to Plan ForWhy the APP gene makes this near-universal pathology by 40, the real prevalence by decade, why the first signs are not memory loss, and the funding point providers keep getting wrong — this stays in the NDIS.

Guide · 13 min readDown Syndrome Regression Disorder: When a Young Adult Suddenly Loses SkillsOnset between 10 and 30, rapid loss of speech and skills over six months, catatonic features, and treatments with documented recovery to 85% of premorbid function. Almost unknown in Australian services.

Communication, living arrangements and work

The profile that explains the understanding–speaking gap, and the adult decisions that get made a decade too late.

Guide · 13 min readCommunication and Down Syndrome: The Profile, and What Actually HelpsWhy verbal short-term memory is the specific weak point, why signing does not delay speech, why reading can come before talking, and the one-page communication profile that should travel with every person.

Guide · 14 min readSupported Independent Living with Down Syndrome: Moving Out, and Planning for LaterWhy most adults with Down syndrome do not meet SDA criteria, the ten-year plan that avoids a crisis move, the over-support trap, and what dementia-ready housing actually means.

Guide · 13 min readWork and Adulthood with Down Syndrome in Australia: The Numbers, and What to Do About Them77% want to work, 34% have a job, 9% are in open employment and the award still permits $3.01 an hour. What customised employment involves, and what the alternatives honestly look like.

Guide · 13 min readSupporting an Adult with Down Syndrome: A Practical Guide for Support WorkersCount to eight. Why “stubborn” is a conclusion rather than an observation, how pain presents, why self-talk is normal, the choking risks, and what to escalate the same day.

A note on language, and on one common error

Why these guides say “a person with Down syndrome”

We use person-first language, because that is the strong preference of the Down syndrome community in Australia — unlike the autistic community, which largely prefers identity-first. It is “Down syndrome,” not “Down’s” or “Downs”; a person “has” it rather than “suffers from” it; and we avoid “high functioning,” “low functioning” and “mental age” throughout, because each of them licenses treating an adult as something other than an adult.

One error worth correcting. A great many Australian provider websites state that Down syndrome is a List A condition and that NDIS access is therefore automatic. It is not. The current Applying to the NDIS operational guideline places Down syndrome on List B, under chromosomal abnormalities resulting in permanent impairment and not specified on List A. The practical consequence is that permanence is effectively settled while functional impact still has to be evidenced — which is why thin access requests built on a karyotype and a paediatrician’s letter get knocked back. Confirm current rules at ndis.gov.au or on 1800 800 110.