Down's syndrome in adult social care: health risks, annual checks, baseline screening and ageing

Down's syndrome is the one learning disability diagnosis where you can write the health surveillance plan on the day of admission, because the risks are known, specific and largely screenable. Thyroid, heart, hearing, sight, gut, sleep and, from the late forties, dementia. Services that rely on the person or the GP to raise problems miss things for years. Services that run a standing schedule catch them in months. This guide sets out the health profile, the annual health check, the dementia baseline, and what changes as people age.

The short answer

Adults with Down's syndrome have a specific and predictable set of health risks that every care service should screen for on a fixed schedule. Thyroid disease affects up to 40 per cent over a lifetime and needs an annual blood test. Hearing loss affects most adults and needs audiology every two years. Sight problems including early cataracts need an eye test every two years and yearly after 40. Coeliac disease, obstructive sleep apnoea, congenital and acquired heart disease, atlanto-axial instability, dysphagia, constipation and obesity all occur at higher rates than in the general population. Everyone should have an annual health check with the GP from age 14, a written health action plan, and a current hospital passport. And because roughly a third of people develop dementia in their fifties, everyone should have a documented cognitive and functional baseline recorded by their early thirties. The rest of this guide explains each of those in practice.

What is Down's syndrome?

Down's syndrome is a genetic condition caused by an extra copy of chromosome 21, present from conception, which affects physical development, intellectual development and health. It is the most common genetic cause of learning disability, occurring in around one in every 800 to 1,000 births in the UK.

Most people with Down's syndrome have a mild or moderate learning disability, although the range runs from mild to severe. Common physical features include low muscle tone, a small mouth and relatively large tongue, and short stature. None of that determines what a person can do.

What matters for a care service is that the extra chromosome carries health consequences across the whole body and across the whole of life. Chromosome 21 also carries the amyloid precursor protein gene, which is why dementia risk is so high and so early. Everything in this guide follows from those two facts.

Why Down's syndrome needs its own health protocol in a care service

The conditions that affect adults with Down's syndrome are common, treatable and easily missed, and most of them present as something other than themselves. Hypothyroidism looks like low mood and weight gain. Sleep apnoea looks like daytime sleepiness and irritability. Hearing loss looks like not listening. Cataracts look like clumsiness.

In a service, every one of those presentations can be recorded as behaviour or as ageing and never investigated. That is diagnostic overshadowing, and it is the single biggest contributor to the fact that people with a learning disability die on average around twenty years earlier than the general population.

The protection against it is a standing schedule that runs whether or not anyone has noticed a problem. Put the schedule in the care record with due dates, assign an owner, and audit it monthly. This is exactly the kind of recurring clinical task that care compliance software should be prompting rather than a manager remembering.

At a glance: the health surveillance schedule for an adult with Down's syndrome

Thyroid disease: the most commonly missed condition

Up to 40 per cent of adults with Down's syndrome develop thyroid disease, most often hypothyroidism, and it is the single most commonly missed treatable condition in this group. Every adult needs an annual thyroid function blood test measuring TSH and free T4 whether or not they have symptoms.

The symptoms are the problem. Tiredness, weight gain, low mood, slowed movement, constipation, dry skin, feeling cold, and reduced interest in activities are exactly what a service might record as the person getting older, being lazy, or being depressed. In someone over 45 they are also exactly what early dementia looks like, which is why a thyroid test is the first thing any dementia assessment should rule out.

Treatment is levothyroxine, taken once daily on an empty stomach, and it works. The service jobs are to get the annual bloods done, support a person who may find venepuncture distressing, chase the result rather than assuming no news is good news, and record both the result and the date. A blood form that was never taken is the commonest failure, and it is invisible unless someone is tracking outcomes rather than appointments.

Heart conditions in adults with Down's syndrome

Around 40 to 50 per cent of babies with Down's syndrome are born with a congenital heart defect, most commonly an atrioventricular septal defect, and most are repaired in infancy. Adults therefore fall into two groups: those with repaired congenital disease who need lifelong cardiology follow-up, and those developing acquired valve disease in adulthood.

Mitral valve prolapse and aortic regurgitation become more common with age even where there was no congenital defect. The signs to act on are breathlessness on mild exertion, new tiredness, reduced exercise tolerance, ankle swelling, palpitations and fainting. Any of those needs a GP appointment.

Record the cardiac history in the care plan: the defect, when it was repaired, which cardiology service follows the person up, the date of the last echocardiogram, and whether antibiotic cover is needed for dental work. People who move between services lose this history, and nobody finds the gap until an emergency.

Hearing loss

Most adults with Down's syndrome have some degree of hearing loss, and the estimates run as high as 75 per cent. The causes are a mix of narrow ear canals that block with wax, recurrent middle ear problems, and earlier-onset sensorineural loss.

Unrecognised hearing loss is routinely mistaken for non-compliance, withdrawal, confusion or dementia. A person who stops joining in, stops responding to their name or becomes irritable in groups needs their ears examined first. Wax alone can cause a complete change in function and is fixable in an afternoon.

Book audiology every two years, more often where loss is known. If the person has hearing aids, the service is responsible for them being worn, cleaned and having working batteries, and for recording when they are not.

Sight, cataracts and keratoconus

Eye problems affect the majority of adults with Down's syndrome: refractive errors, cataracts that appear decades earlier than usual, keratoconus, blepharitis and nystagmus. Eye tests should be every two years up to 40 and annually after that, with an optician experienced in learning disability.

Early cataracts catch services out. The person becomes hesitant on stairs, stops reaching for things, bumps into furniture or stops enjoying television, and the change is put down to ageing or cognitive decline. Cataract surgery is generally well tolerated with the right preparation.

Record what the person can see, not just that they have had a test. Whether they wear their glasses, find their own room, manage a plate of food, use stairs confidently. Those observations are what make the next optician appointment useful.

Coeliac disease

Coeliac disease affects around 5 to 7 per cent of people with Down's syndrome, several times the general population rate, and every adult should have been tested at least once. The test is a blood test for tissue transglutaminase antibodies, requested through the GP.

The presentation is often not classic. Instead of diarrhoea there may be iron deficiency anaemia, weight loss, fatigue, mouth ulcers, or irritability and abdominal discomfort the person cannot describe. Where there is unexplained anaemia or weight change, coeliac serology belongs on the request list.

If confirmed, a gluten free diet is lifelong and the service has to make it real: separate toaster, separate butter, labelled storage, staff trained on cross-contamination, and the diet recorded in the care plan, the kitchen file and the hospital passport.

Obstructive sleep apnoea

Obstructive sleep apnoea is very common in adults with Down's syndrome, affecting up to half or more, because of low muscle tone, a relatively large tongue, a small midface and a tendency to obesity. It is badly underdiagnosed and it has serious consequences for cognition, mood, heart health and daytime function.

Night staff are the people who will spot it. Record snoring, pauses in breathing, gasping, restlessness and whether the person sleeps sitting up. Day staff record morning headaches, daytime sleeping, irritability and poor concentration. Take those together to the GP as a request for a sleep study.

Untreated sleep apnoea produces exactly the picture that gets mistaken for early dementia: memory problems, slowed thinking, low mood, daytime sleepiness. It must be excluded before any dementia diagnosis is accepted. Treatment is usually CPAP, and tolerating a mask takes graded desensitisation and patience from the team.

Atlanto-axial instability and the neck

Atlanto-axial instability is increased movement between the first two vertebrae in the neck, found on imaging in perhaps 10 to 20 per cent of people with Down's syndrome, though symptomatic cases are rare. When it does cause spinal cord compression it is a medical emergency.

Services do not need to screen everyone with x-rays; current guidance does not support routine radiographic screening in the absence of symptoms. What services need is awareness of the warning signs and the situations that carry risk. The signs are new neck pain, a head tilt or torticollis, a change in gait, new clumsiness in the hands, new weakness, and new bladder or bowel incontinence. Any of those needs urgent medical review the same day.

The risk situations are general anaesthesia, intubation, some physiotherapy manoeuvres, trampolining and contact sport. Make sure the possibility of atlanto-axial instability is written in the hospital passport so that an anaesthetist sees it before they position the neck.

Weight, diabetes and metabolic health

Obesity is substantially more common in adults with Down's syndrome, driven by a lower basal metabolic rate, low muscle tone, hypothyroidism, reduced physical activity, and often by well-meaning services that use food as an activity and a reward. Type 1 and type 2 diabetes both occur at raised rates.

Weigh monthly on the same scales on the same day and plot the trend rather than looking at single readings. Use a MUST score when weight changes in either direction. Unplanned weight loss in an adult with Down's syndrome is never to be waited on: it needs a coeliac test, a thyroid test, a swallow review and a look at dental pain.

The support that works on weight is not a diet imposed by staff. It is physical activity the person enjoys and repeats, meals they help make, constant portion sizes, and a house where cake is not the only social event. Record what was offered and what the person chose.

Dysphagia, aspiration and chest infections

Swallowing problems are common in Down's syndrome and become more common with age and with the onset of dementia. Aspiration pneumonia is one of the leading causes of death in people with a learning disability, and most of those deaths follow months of signs that were recorded but never escalated.

The signs are coughing or a wet voice during or after eating and drinking, pocketing food in the cheek, eating very fast, taking a long time over meals, recurrent chest infections, unexplained weight loss and a temperature with no other cause. Any of these warrants a referral to speech and language therapy for a swallow assessment.

Where a modified diet or thickened fluids are recommended, the IDDSI level must be recorded in the care plan, on the kitchen board and in the hospital passport, and every worker including agency must know it. Our guide to choking risk, dysphagia and IDDSI levels covers the framework and the recording.

Constipation, teeth and skin

Constipation is near universal in this population and it kills people. Low muscle tone, low fluid intake, low fibre, reduced mobility, hypothyroidism and the side effects of psychotropic medication all contribute. Keep a daily bowel record using the Bristol stool chart, set an escalation threshold, and act on it.

The rule worth writing into the care plan is explicit: if there has been no bowel movement for three days, tell the senior; at four days, contact the GP. Abdominal pain, vomiting or a distended abdomen in someone who has not opened their bowels is an emergency. Record intake as well as output, because increasing fluids is the first intervention. The guide to fluid and nutrition charts covers how to record it usefully.

Periodontal disease affects the great majority of adults with Down's syndrome, appears early and progresses fast, and dental pain in someone with limited speech presents as behaviour change or food refusal. Six-monthly dental checks, twice-daily brushing with support, and a record of refusals are the minimum. Skin is typically dry and prone to eczema and fungal infection in skin folds; check and moisturise daily and use body maps to record what is found.

What is the learning disability annual health check?

The annual health check is a dedicated appointment with the GP for anyone aged 14 and over who is on the practice learning disability register. It is a whole-body review including physical examination, blood tests, medication review, checks for conditions associated with the person's specific syndrome, and a conversation about how the person is.

It is not the same as an appointment about a problem and should never be substituted for one. It should produce a written health action plan listing what needs to happen, who is doing it and by when. Around a quarter of eligible people still do not get one, and services are frequently the reason.

Prepare for it. Take the weight trend, the bowel record, a list of every medication including homely remedies, a note of every appointment and result in the last year, what the person themselves wants to raise, and the specific Down's syndrome checks that are due. A prepared twenty-minute appointment achieves more than three unprepared ones.

The health action plan and who chases it

A health action plan is only useful if one named person owns each action with a date. The most common failure in learning disability services is not missing the appointment; it is the referral that was made, never followed up, and quietly lost when the letter went into a file.

Hold the actions as tasks with owners and due dates in the care record, not as a paragraph in a document. Audit them monthly: what was referred, what has come back, what has been chased, what has been cancelled and why. A learning disability care management platform that can list every outstanding health action across a service in one screen turns this from a memory exercise into a five-minute check.

Hospital passports and reasonable adjustments

A hospital passport travels with the person to every appointment and admission and tells clinicians the things they cannot work out for themselves: how the person communicates, how they show pain, what they can eat and at what IDDSI level, their medicines, their baseline function and the adjustments they need.

For Down's syndrome specifically, the passport should flag the possibility of atlanto-axial instability for anaesthetists, any cardiac history and whether endocarditis prophylaxis applies, hearing and sight impairments, coeliac disease and any swallow recommendation. It should also state clearly what the person's normal is, because a hospital that has never met them has no way of knowing whether this is baseline or deterioration.

Adjustments worth requesting in advance: first appointment of the day, no waiting room, a quiet space, a familiar worker present throughout, extra time, easy read information, and one clinician rather than many. Our guide to hospital passports covers the format.

What is the risk of dementia in people with Down's syndrome?

Dementia risk in Down's syndrome is very high and very early. Around one in three people develop Alzheimer's disease in their fifties, and more than half by their sixties, compared with a general population where it is rare before 65. Average age at diagnosis is in the mid to late fifties.

The reason is genetic. The amyloid precursor protein gene sits on chromosome 21, so people with Down's syndrome produce more of the protein that forms amyloid plaques, from birth. It is a specific, predictable process, and it means dementia should be anticipated like any other known risk.

Anticipating it means three things: a documented baseline recorded years before anything changes, annual review against that baseline, and a service that is honest with families early rather than telling them everything is fine until it is obviously not.

Why you take a cognitive and functional baseline at 30

A baseline is a written record of what a person can normally do, taken while they are well, so that a later change can be measured rather than argued about. For people with Down's syndrome it should be completed by the early thirties and repeated annually, because dementia can begin in the forties.

Without a baseline, a dementia assessment in a person with a pre-existing learning disability is close to impossible. Standard cognitive tests are not valid for someone who could never do the tasks in the first place, so the assessment relies entirely on informant-reported change from that person's own previous level. If nobody wrote down the previous level, there is nothing to compare with.

Use a validated tool designed for this population rather than a general one. The Dementia Screening Questionnaire for Individuals with Intellectual Disabilities and the Dementia Scale for Down's Syndrome are both completed with someone who knows the person well. Alongside the tool, record in plain language what the person does now: the morning routine, what they manage in the kitchen, whether they go out alone, what words they use, continence, what they enjoy. Date it and name who contributed.

Early signs of dementia in Down's syndrome

Dementia in Down's syndrome usually starts with personality and behaviour change rather than memory loss. Apathy, withdrawal, loss of interest in things the person loved, slowing down, and a change in social behaviour typically come first, because the frontal lobes are affected early.

Other early features include new or increased seizures, which are common and significant in this group, loss of skills the person had for years such as dressing or making a drink, new incontinence, sleep disturbance and day-night reversal, getting lost in familiar places, and changes in gait and coordination. Memory problems appear but are often not the first thing families notice.

The hardest part is that all of these can be caused by something else entirely. That is not a reason to delay, it is a reason to investigate properly. Record the change with dates and examples, compare it directly with the baseline, and take that to the GP rather than a general statement that the person seems different.

Getting the diagnosis, and what to rule out first

Before anyone accepts a dementia diagnosis, every treatable cause of the same picture must be excluded. In Down's syndrome that list is long and the conditions on it are common, so this step finds a reversible cause surprisingly often.

• Hypothyroidism: thyroid function blood test.
• Depression, which frequently follows bereavement, a house move or a friend leaving.
• Obstructive sleep apnoea.
• Hearing loss and visual impairment, including cataracts.
• B12 and folate deficiency, and anaemia.
• Coeliac disease.
• Pain, particularly dental, joint and abdominal.
• Constipation and urinary infection.
• Medication side effects, especially anticholinergic load and psychotropics.
• Life events: a death, a change of staff, a move, a change of day service.

Referral should go to a specialist learning disability team or a memory service with learning disability experience, with the baseline, the current assessment, the blood results and a written account of the change. NICE dementia guidance applies, with the adjustment that standard screening tools are not valid here and informant history is the primary evidence.

Supporting someone through dementia in a learning disability service

The principles are the same as in any dementia care, but the starting point is different: the person already needed support, already has communication differences, and already lives in a service built around a stable routine that is now going to change.

What helps: keep the environment and the staff team constant; simplify rather than remove activity; use objects, photographs and physical cues as words become harder; review the environment for falls, lighting and contrast; and watch for pain, which the person can report less and less.

Review the plan far more often than annually. Skills are lost in steps, and a plan written six months ago may be asking the person to do things they can no longer do, which is a direct cause of distress. Seizures often appear or worsen and need their own protocol; our guide to epilepsy in learning disability services covers rescue medication and recording.

Ageing in a service that was designed for young adults

Many learning disability homes were set up for people in their twenties and thirties and now support people in their fifties and sixties with the needs of someone considerably older. The building, the staffing model and the registration often have not moved with them.

The questions to ask about your own service are concrete. Is there a ground floor bedroom or a lift? Can a hoist be used in the bathrooms and bedrooms? Are doorways wide enough for a wheelchair? Can night staffing cope with two people needing turning? Can you meet increasing nursing needs within a residential registration, or will the person have to move?

Moving someone with dementia out of the home they have lived in for twenty years, away from the people who know them, is a serious harm and should be the last option. Plan ahead: adapt the building, add nursing input from district nurses, train the team in moving and handling and end of life care, and discuss the limits honestly with commissioners while there is still time. Where a service does move towards nursing needs, the recording requirements shift too, and providers often find themselves comparing their current system with nursing home software that handles wound care, turning charts and clinical observations.

End of life planning, ReSPECT and DNACPR

People with Down's syndrome are entitled to the same advance care planning as anyone else, and historically they have not received it. Start the conversation early, while the person can take part, and record their wishes in their own words.

A ReSPECT form or equivalent should record the person's priorities for care and any treatment recommendations, completed with the person where they have capacity and through a best interests process where they do not. A DNACPR is a clinical decision, but it must be discussed with the person or their representatives, and a learning disability is never on its own a reason for one. Challenge any form that appears without that discussion.

Record capacity assessments for each specific decision and who was involved in any best interests process, following the Mental Capacity Act checklist. Involve the person's family and their GP early, and review the plan after every significant change.

What good recording looks like

The record for an adult with Down's syndrome should make deviation from their normal visible within days. That requires two things: a written baseline, and routine observations captured often enough to show a trend.

The standing entries are weight monthly, bowels daily, fluid intake where there is concern, sleep and snoring, seizures, skin, appetite and refusals, plus a dated record of every appointment requested, attended, cancelled and its outcome. Narrative notes should describe what the person did and chose, not what staff delivered.

Then use it. At every review, put this month's picture next to the baseline and ask what has changed. Most serious health events here are preceded by weeks of small recorded changes that nobody put side by side.

Worked example: Priya at 41

Priya is 41, has Down's syndrome and a moderate learning disability, and has lived in the same five-person home for eleven years. Her baseline, completed at 32 and updated annually, records that she makes her own toast, dresses with clothes laid out, uses around fifty Makaton signs, goes to a craft group she loves on Tuesdays, and is continent day and night.

Over four months her keyworker recorded that she stopped signing at the craft group, twice could not find her own bedroom, and had three episodes of night-time incontinence. Weight was down 3kg. The manager did not jump to dementia. She requested thyroid function, B12 and coeliac bloods, booked audiology and an eye test, and asked night staff to record snoring.

The thyroid result came back clearly hypothyroid. Priya started levothyroxine, and within three months her weight, her continence and her signing had returned to baseline. Had the service accepted the first explanation offered at the review meeting, she would have been on a dementia pathway with an untreated thyroid.

Worked example: Jordan and the result nobody read

Jordan is 27, has Down's syndrome and a mild learning disability, and lives in his own flat with nine hours of support a week. His annual health check in March generated a blood form. He attended the phlebotomy appointment with a support worker in April. Nobody chased the result.

In October his support hours were increased because he had become withdrawn, was not going to his warehouse job, and had gained weight. The new worker went through his health file, found the April result on the GP summary showing a raised TSH, and discovered no action had been taken.

The service changed two things. Blood tests are now recorded as an action with an owner and a due date for the result, not just the appointment, and every outstanding health action is reviewed monthly. A system that tracks appointments and not outcomes will lose results indefinitely.

Common mistakes

• Treating tiredness, weight gain and low mood as ageing rather than testing the thyroid.
• Tracking appointments made rather than results received and acted on.
• No cognitive and functional baseline, so there is nothing to compare when change begins.
• Accepting a dementia diagnosis without excluding thyroid, sleep apnoea, hearing, sight, depression, pain and constipation.
• Recording hearing loss as the person not listening or being withdrawn.
• Letting hearing aids and glasses sit in a drawer with no record that they are not worn.
• Waiting on unplanned weight loss instead of investigating it immediately.
• No daily bowel record and no escalation threshold.
• A hospital passport that does not mention atlanto-axial instability, cardiac history or IDDSI level.
• Planning for ageing only when the person can no longer manage the stairs.

What good looks like on inspection day

An inspector picks a resident with Down's syndrome and asks what health checks they have had this year. The manager shows a screen listing the annual health check with its date and the health action plan, the thyroid result, the audiology appointment, the eye test, the dental visits, the monthly weights and the daily bowel record, each with an owner and a status.

They ask about dementia. The manager shows a functional baseline completed nine years ago and updated every year since, with the plain-language description of what the person could do at 32 alongside what they can do now. They show the referral made last year for a cognitive change, the bloods that were done first, and the hypothyroidism it turned out to be.

They ask a support worker how this person shows pain. The worker answers specifically, and the answer is in the plan. They ask what would happen if the person needed hoisting, and the manager describes the adaptation already done in two bathrooms and the conversation already had with the commissioner. That is the evidence inspectors look for, and it comes from a system that prompts rather than a manager who remembers. If you want to see how health actions, baselines and daily observations sit against one person, book a demo.

Final conclusion

Down's syndrome comes with a known health profile, which means almost everything that goes wrong is foreseeable. Run the schedule: thyroid annually, hearing and sight on a cycle, coeliac once, weight monthly, bowels daily, dental every six months, annual health check with a written action plan that somebody owns. Take a cognitive and functional baseline by the person's early thirties and update it every year, because dementia arrives two decades earlier here than it does elsewhere and cannot be assessed without it. Investigate every change rather than attributing it to the syndrome or to age. Plan for ageing before the stairs become impossible. Do those things and people with Down's syndrome in your service will live longer, more comfortably, and in their own home.

Frequently asked

What health checks should an adult with Down's syndrome have every year?

An annual health check with the GP producing a written health action plan, an annual thyroid function blood test, monthly weights, a daily bowel record, dental checks every six months, audiology every two years and an eye test every two years, moving to annually after 40.

Why do adults with Down's syndrome need a thyroid test every year?

Because up to 40 per cent develop thyroid disease, usually hypothyroidism, and the symptoms of tiredness, weight gain, low mood, constipation and slowing down are easily mistaken for ageing, depression or early dementia. It is treatable with levothyroxine once it is found.

At what age does dementia usually start in people with Down's syndrome?

Much earlier than in the general population. Around one in three people develop Alzheimer's disease in their fifties and more than half by their sixties, because the amyloid precursor protein gene sits on chromosome 21. Average age at diagnosis is mid to late fifties.

What is a dementia baseline and when should it be done?

A written record of what a person can normally do, cognitively and functionally, taken while they are well. For people with Down's syndrome it should be completed by the early thirties and updated annually, because dementia assessment in someone with a pre-existing learning disability depends entirely on comparison with their own previous level.

What should be ruled out before a dementia diagnosis in Down's syndrome?

Hypothyroidism, depression, obstructive sleep apnoea, hearing loss, visual impairment including cataracts, B12 and folate deficiency, coeliac disease, pain, constipation, urinary infection, medication side effects and recent life events. Several of these are common enough that a reversible cause is found fairly often.

What is atlanto-axial instability and what should care staff watch for?

Increased movement between the top two vertebrae in the neck, seen on imaging in around 10 to 20 per cent of people with Down's syndrome. Routine x-ray screening is not recommended, but new neck pain, head tilt, gait change, hand clumsiness, weakness or new incontinence needs urgent same-day medical review.

Should a hospital passport say anything specific for Down's syndrome?

Yes. It should flag the possibility of atlanto-axial instability for anaesthetists, any congenital or acquired cardiac history, hearing and sight impairment, coeliac disease, any IDDSI swallow recommendation, and a clear description of the person's normal function so hospital staff can tell baseline from deterioration.

How should a learning disability home plan for residents getting older?

Ahead of time. Check whether the building can take a hoist, a wheelchair and a ground floor bedroom, whether night staffing can manage turning, whether the activity programme works for someone who no longer goes out, and whether increasing nursing needs can be met within your registration. Moving someone with dementia out of their home should be the last option.

Sources

• Down's Syndrome Association: medical and health guidance for adults
• NICE guideline NG96 dementia: assessment, management and support
• NHS England: learning disability annual health check and health action plans
• Royal College of Psychiatrists: dementia and people with intellectual disabilities
• LeDeR: Learning from Lives and Deaths annual reports
• British Society of Gastroenterology guidance on coeliac disease
• Mental Capacity Act 2005 Code of Practice
• Resuscitation Council UK: ReSPECT process