Dr Gavin R. Stewart
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gavrobstew.bsky.social
Dr Gavin R. Stewart
@gavrobstew.bsky.social
British Academy Postdoctoral Research Fellow interested in ageing, autism, cognition, health & wellbeing 🧠 Also coordination lead and working group member of NHSE-funded Autism Practitioner Network 📝 He/him 🏳️‍🌈🏳️‍⚧️ Based at KCL 🏫
Pinned
I'm very pleased that our new narrative review on autism in midlife and old age has now been published in the Annual Review of Developmental Psychology (by me and @proffrancescahappe.bsky.social).

We cover a lot of topics... more below!

Open access: doi.org/10.1146/annu...

#AutRes
Aging Across the Autism Spectrum | Annual Reviews
Aging in autistic populations is a historically neglected but now rapidly advancing area of research. This narrative review provides a broad overview of the current state of the field of aging on the ...
www.annualreviews.org
Reposted by Dr Gavin R. Stewart
I'm editing a Special Collection for Women's Health on autistic women and girls' health and wellbeing -
particularly interested in submissions from the Global South and with under-researched groups! journals.sagepub.com/topic/collec...
journals.sagepub.com
January 27, 2026 at 2:46 PM
Another new open-access paper (w/ Dr Elly Nuzum, Prof Josh Stott and Dr Amber John) has been published in Nature Mental Health!

Using data from PROTECT (n=9979, age 50+), we found that the relationship between #autistic traits and #suicidality was mediated by mental health and social problems.
Autistic traits and suicidality in midlife and old age: investigating mediating effects of mental health and social connectedness - Nature Mental Health
Nuzum et al. used cross-sectional data from the UK PROTECT study to evaluate the relationship between high autistic traits and suicidality in older adults.
www.nature.com
January 27, 2026 at 11:42 AM
Our new open-access paper (with Prof Josh Stott and Dr Amber John) has been published in JAMA Network Open. Using data from the BCS-1970 cohort, we found that childhood #ADHD traits were associated with increased risk of poorer long-term health outcomes and behaviours in midlife.
ADHD Traits in Childhood and Physical Health in Midlife
This cohort study investigates the association between childhood attention-deficit/hyperactivity disorder (ADHD) traits and physical health outcomes in midlife and the role health risk factors play in...
jamanetwork.com
January 27, 2026 at 11:36 AM
Reposted by Dr Gavin R. Stewart
Are you the sibling of a person diagnosed with pathological or extreme demand avoidance? Or are you the parent of someone with pathological or extreme demand avoidance who has another child above the age of 18, who you think would be interested in taking part in research?
We have a study for you! 1/
January 21, 2026 at 2:37 PM
Pleased to share a new community resource on #autism and #dementia that I co-produced with @dementiauk.bsky.social, @autistica.org.uk, and members of the autism and dementia community.

www.dementiauk.org/information-...

@kingsioppn.bsky.social
Autism and dementia
Dementia UK is a charity that provides Admiral Nurses for families affected by dementia. Call our Dementia Helpline to find out how we can support you.
www.dementiauk.org
January 20, 2026 at 9:02 AM
My former King's College London MSc DEVPP student, Sophie Roper, has published her dissertation on autism, sucidality and ageing. Supervised by me, plus @proffrancescahappe.bsky.social & @goldage.bsky.social

The paper is open access in Molecular Autism: link.springer.com/article/10.1...

#AutRes
Self-harm and suicidality experiences of autistic and non-autistic adults in midlife and old age - Molecular Autism
Background Suicide has been reported as a leading cause of premature death in autistic populations. Additionally, risk of suicidality is often found to increase with age in the general population. Des...
link.springer.com
December 1, 2025 at 11:00 AM
Reposted by Dr Gavin R. Stewart
My fantastic PhD student @tanachikaura.bsky.social has published her first first-author paper today on self-reported lifetime traumatic experiences, psychological distress, and risk of suicidality among autistic adults. As the paper provides details on these issues, please take care when reading
Traumatic Experiences, Psychological Distress and Suicide‐Related Behaviors in Autistic Adults
Autistic adults have increased risks of trauma, suicide, and poor mental health compared to non-autistic adults, with 1 in 4 autistic adults attempting suicide. We administered an anonymized, self-re...
eur03.safelinks.protection.outlook.com
November 25, 2025 at 12:18 PM
Reposted by Dr Gavin R. Stewart
🚨 Funded PhD on ageing, social cognition & self/other differentiation! 🚨

🧠 Supervised by myself (University of St Andrews) & Prof. Louise Phillips (University of Aberdeen), the project includes EEG & eye-tracking training.

🌍 Open to UK + international students!

📅 Deadline: 15th Dec 2025
November 20, 2025 at 3:11 PM
I’ve had a busy few weeks with life, travel & grant deadlines, but I’m really pleased that a letter I wrote has been published.

In it, I recommend that autism researchers talk about midlife and old age as separate life stages, not conflating the two.

doi.org/10.1177/1362...

#AutRes
Distinguishing midlife and old age: A recommendation for autism researchers - Gavin R Stewart, 2025
Research on ageing in autism has sharply increased following a number of influential publications that highlighted the lack of knowledge in this area. However, ...
journals.sagepub.com
November 13, 2025 at 7:44 PM
Reposted by Dr Gavin R. Stewart
Are you an autistic person aged 18+ from the Global Majority, who has received talking therapy for support around anxiety? We hope to include a diverse range of voices to inform our study, which involves a 75 minute online interview. To find out more, please follow this link: dub.sh/LzKn6is
November 7, 2025 at 5:11 PM
Reposted by Dr Gavin R. Stewart
📣The ARCH seminar is back!
Join us on October 22nd to hear from Nell Fahey (with introduction from Dr Gavin Stewart) about their work on the social experiences of middle-aged and older autistic adults.
More info on our mailout - sign up and get tickets @ www.eventbrite.co.uk/e/arch-semin...
October 1, 2025 at 11:55 AM
Reposted by Dr Gavin R. Stewart
Excited to share my first first-author paper in Journal of Neurology! 🧠

Using the TriNetX dataset (176M patients), we explored co-occurring FND and Autism - work first presented at the RCPsych Neuropsychiatry Conf

Read it here: link.springer.com/article/10.1...

#Autism #FND #Neuropsychiatry
Co-occurring functional neurological disorder and autism: an exploratory study of comorbidities in a retrospective cohort study using TriNetX - Journal of Neurology
Background Functional Neurological Disorder (FND) encompasses motor, cognitive, and sensory symptoms resulting from disruptions in brain-body communication. Emerging research suggests a higher-than-expected occurrence of autism in FND, potentially due to shared cognitive mechanisms and overlapping comorbidities. However, large-scale characterisation of this dual-diagnosis is lacking. Methods Using de-identified health records from the TriNetX research network, we identified children and adults with both FND and autism (‘FND + Autism’), comparing them to individuals with FND only (‘FND-only’) and autism only (‘Autism-only’). We examined psychiatric comorbidities (e.g. mood, anxiety, post-traumatic stress disorder, personality disorders, obsessive–compulsive disorder), intellectual disability and ADHD. Results Of 220,312 individuals with an FND diagnosis, and 674,971 individuals with an autism diagnosis, 5,152 (2.3% of FND, 0.76% of autism) had both FND and autism. The rates of autism were therefore 6 times higher in FND compared to the base rates of the TriNetX population. Most were diagnosed with autism before FND, with over one-third diagnosed in childhood. Functional seizures were the most common FND subtype, and were more frequent in FND + Autism than FND-only (adults: 52% vs. 44%; children: 47% vs. 42%). Comorbidity across all psychiatric conditions was significantly higher in FND + Autism compared to both comparison groups. ADHD was particularly elevated in FND + Autism (adults: 50% vs. 13% FND-only, 36% Autism-only; children: 64% vs. 21% FND-only, 41% Autism-only). Conclusions This study presents the largest dataset to date characterising individuals with co-occurring FND and autism. Findings are consistent with previous findings of higher rates of autism in people with FND and reveal a potentially distinct clinical profile, marked by elevated rates of ADHD and psychiatric comorbidities, and increased occurrence of functional seizures compared to FND- or Autism-only groups. Recognising this overlap may improve diagnosis, clinical care, and understanding of mechanisms underlying the co-occurrence of FND and autism.
link.springer.com
September 26, 2025 at 10:22 AM
Reposted by Dr Gavin R. Stewart
On the @annualreviews.bsky.social website, there is a new review on autism and aging. It covers areas including underdiagnosis for #ActuallyAutistic adults aged 40 and over.

The review is available at www.annualreviews.org/content/jour...
Aging Across the Autism Spectrum | Annual Reviews
Aging in autistic populations is a historically neglected but now rapidly advancing area of research. This narrative review provides a broad overview of the current state of the field of aging on the ...
www.annualreviews.org
September 23, 2025 at 9:41 AM
Reposted by Dr Gavin R. Stewart
New funded PhD at the University of Greenwich 📚

Study loneliness from age 18–30 using twin data from the E-Risk Study.

Join a world-class team in London & explore how early adulthood shapes mental health.

Open to global applicants 🌍
🔗 www.findaphd.com/phds/project...
#PsychScience #fundedPhD
Loneliness in young adulthood: a 12-year follow up in an epidemiological, genetically-sensitive cohort study at University of Greenwich on FindAPhD.com
PhD Project - Loneliness in young adulthood: a 12-year follow up in an epidemiological, genetically-sensitive cohort study at University of Greenwich, listed on FindAPhD.com
www.findaphd.com
September 10, 2025 at 3:10 PM
Reposted by Dr Gavin R. Stewart
Ellen McAdams, a former lab MSc student, will be speaking in the ageing session on Thursday (11-12pm) about trauma and PTSD in middle-aged and older people.

Dr Madeleine Walpert (DementiaUK), who has teamed up with Gavin, will also be speaking about a co-produced dementia information resource.
September 8, 2025 at 1:26 PM
Reposted by Dr Gavin R. Stewart
We're looking forward to #AutismEurope later this week!

Our lab co-lead, Dr Gavin Stewart @gavrobstew.bsky.social, will be presenting a poster on Thursday, exploring sleep problems and mental health in middle-aged and older people.

Drop by and say hello!
September 8, 2025 at 1:26 PM
Reposted by Dr Gavin R. Stewart
Most #autism research focuses on young people, so we know very little about about the needs of autistic adults as they age, writes @gavrobstew.bsky.social in the @uk.theconversation.com.

www.kcl.ac.uk/news/what-we...
What we do (and don't know) about autism and ageing – new research
Autism is often thought of as a childhood condition, but this is far from true. Autism is a lifelong condition – and most autistic people are adults. Yet less than 1% of autism research has focused on...
www.kcl.ac.uk
September 3, 2025 at 1:18 PM
Reposted by Dr Gavin R. Stewart
We start by raising the issue that autism in midlife and old age are often overlooked. Using data from O'Nions et al. (2023; Lancet), we estimate that 89% of middle-aged autistic people and 96% of older autistic people in the UK are likely undiagnosed.

doi.org/10.1146/annu...

#AutRes
September 1, 2025 at 7:16 AM
Reposted by Dr Gavin R. Stewart
I'm very pleased that our new narrative review on autism in midlife and old age has now been published in the Annual Review of Developmental Psychology (by me and @proffrancescahappe.bsky.social).

We cover a lot of topics... more below!

Open access: doi.org/10.1146/annu...

#AutRes
Aging Across the Autism Spectrum | Annual Reviews
Aging in autistic populations is a historically neglected but now rapidly advancing area of research. This narrative review provides a broad overview of the current state of the field of aging on the ...
www.annualreviews.org
September 1, 2025 at 7:16 AM
I'm very pleased that our new narrative review on autism in midlife and old age has now been published in the Annual Review of Developmental Psychology (by me and @proffrancescahappe.bsky.social).

We cover a lot of topics... more below!

Open access: doi.org/10.1146/annu...

#AutRes
Aging Across the Autism Spectrum | Annual Reviews
Aging in autistic populations is a historically neglected but now rapidly advancing area of research. This narrative review provides a broad overview of the current state of the field of aging on the ...
www.annualreviews.org
September 1, 2025 at 7:16 AM
Reposted by Dr Gavin R. Stewart
Large numbers of older autistic people remain undiagnosed and thus may not have the right support - new @britishacademy.bsky.social supported research by @gavrobstew.bsky.social @proffrancescahappe.bsky.social
www.kcl.ac.uk/news/up-to-9...
August 30, 2025 at 11:15 AM
Reposted by Dr Gavin R. Stewart
Around 90% of middle-aged and older #autistic adults are undiagnosed in the UK and face higher rates of mental and physical health conditions.

Research led by Dr Gavin Stewart & Prof Francesca Happé; funded by @britishacademy.bsky.social @nihr.bsky.social

www.maudsleybrc.nihr.ac.uk/posts/2025/a...
August 29, 2025 at 9:56 AM
Reposted by Dr Gavin R. Stewart
NEW #AUTISM RESEARCH (@gavrobstew.bsky.social + @proffrancescahappe.bsky.social): Nearly 90% of middle-aged and older #autistic adults are undiagnosed in the UK; autistic adults are facing higher rates of mental and physical health conditions as they age

www.kcl.ac.uk/news/up-to-9...
Around 90% of middle-aged and older autistic adults are undiagnosed in the UK, new review finds
89 to 97 per cent of autistic adults aged 40+ years are undiagnosed in the UK, according to the largest review of its kind. The review indicated that middle-aged and older autistic adults are facing h...
www.kcl.ac.uk
August 29, 2025 at 8:54 AM
Reposted by Dr Gavin R. Stewart
🧠 New study at KCL looking for volunteers with both #FND and #Autism to take part in an interview sharing your experiences!

- 15 minute survey followed by a 1 hour interview

Interested?
✉️ Please message me: [email protected]

Thanks for sharing!
August 11, 2025 at 8:52 AM
Reposted by Dr Gavin R. Stewart
Our lab lead Dr Jessica Agnew-Blais spoke at the British Menopause Society Annual Conference last week on the links between ADHD and menopause.

It was great to hear clinicians in the room share their experiences supporting women through this often-overlooked transition 🙌 #ADHD #Menopause #bmsconf25
June 30, 2025 at 11:42 AM