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J

Johnny Downs

king's college london

33H-index
188Paper Count
3.7KCitation Count
Published Papers 74
Publication Date
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Longitudinal associations between school absence and mental health problems in adolescents in England: a retrospective cohort study using linked administrative data
errChild and Adolescent Mental Health
IF5
err2026-08-11
err0
errOAAI
errSophie Epstein; Brian C.F. Ching; Alice Wickersham; Rina Dutta; Craig Morgan; Tamsin Ford; Richard D. Hayes; Johnny Downs
errShare
errSave
Technology Matters: Ambient voice technology in mental health and neurodevelopmental settings – considerations for responsible implementation and evidence gaps
errChild and Adolescent Mental Health
IF5
err2026-03-25
err0
errOAAI
errJudith Dineley; Noah Stanton; Aadam Aziz; Matteo Catanzano; Hissah Al Abdulsalam; Huajie Jin; Nicholas Cummins; Salim Jakhra; Solomon Wong; Johnny Downs
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errSave
Variations in trajectories of emotional and behavioural symptoms in children and young people with pre-existing mental health and neurodevelopmental conditions before and during the COVID-19 pandemic: A nested data linkage clinical cohort study
errJCPP Advances
IF3.1
err2026-03-01
err0
PREAI
errChing, Brian C. F.; Wickersham, Alice; Stringer, Dominic; Ragunathan Brindha, Sarjhana; Colling, Craig; Morton, Ruby; Parlatini, Valeria; Downs, Johnny; Simonoff, Emily
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errSave
ADHD remote technology and ADHD transition: predicting and preventing negative outcomes (ART-transition) - an adolescent prospective cohort study protocol
errBMC Psychiatry
IF3.6
err2025-12-11
err0
errOAAI
errAislinn Bowler; Johnny Downs; Ewan Carr; Madeleine Groom; Andrea Bilbow; Anna Redly; Katie Cunningham-Rowe; Amos Folarin; Richard J. B. Dobson; Jonna Kuntsi
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errSave
Automatic detection of expressed emotion from five-minute speech samples: Challenges and opportunities (vol 19, e0300518, 2024)
errPLOS ONE
IF2.6
err2025-12-04
err0
errOAAI
errMirheidari, Bahman; Bittar, Andre; Cummins, Nicholas; Downs, Johnny; Fisher, Helen L.; Christensen, Heidi
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errSave
Technology matters: AI-driven tools in children's mental healthcare: perspectives from young people and parents
errChild and Adolescent Mental Health
IF5
err2025-11-12
err0
errOAAI
errZoë Firth; Christine Aicardi; Stephen Oram; Nicholas Cummins; Alice Wickersham; Helen L. Fisher; Johnny Downs
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errSave
Exploring Contradicting Associations between Anxiety Disorders, Obsessive-Compulsive Disorder, and Academic Achievement: A Meta-Analysis
errJournal of Anxiety Disorders
IF4.5
err2025-11-08
err0
PREAI
errGeorgia Socratous; Senta M Haussler; Katie Finning; David M Howard; Richard D Hayes; Johnny Downs; Alice Wickersham
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errSave
Editorial Perspective: A call for action on imposter participants in child and adolescent mental health research
errChild and Adolescent Mental Health
IF5
err2025-10-11
err0
errOAAI
errBrian C.F. Ching; Cornelius Ani; Angie Pitt; Sharon Eager; Emily Simonoff; Johnny Downs
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errSave
Investigating the use and impact of community Care (Education) and Treatment Reviews (C(E)TRs) in people with intellectual disability and autistic people: protocol for a cohort study using electronic health records
errBMJ OPEN
IF2.3
err2025-09-30
err0
errOAAI
errMccoy, Bronagh; Bell, Lauren; Wang, Kang; Jin, Huajie; Hassiotis, Angela; Strydom, Andre; Downs, Johnny; Carter, Ben; Shetty, Hitesh; Stewart, Robert; Ali, Afia; Sheehan, Rory
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errSave
Recurrent care proceedings and use of services for substance use disorder: A retrospective linked data cohort study of mothers in South London
errAddiction
IF5.3
err2025-08-27
err0
errOAAI
errMartha Canfield; Gail Gilchrist; Johnny Downs; Sam Norton
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errSave
Maternal expressions of warmth and negativity and adolescent mental health: using longitudinal monozygotic twin-difference analyses to approach causal inference
errJournal of Child Psychology and Psychiatry
IF7
err2025-08-13
err0
errOAAI
errAlice Wickersham; Avshalom Caspi; Louise Arseneault; Terrie E. Moffitt; Johnny Downs; Antony Ambler; Rachel M. Latham; Nicholas Cummins; Zoë Firth; Jasmin Wertz; Helen L. Fisher
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errSave
Technology Matters: A model for translating digital and data science innovations into Child and Adolescent Mental Health Services
errChild and Adolescent Mental Health
IF5
err2025-06-26
err0
errOAAI
errAlice Wickersham; William Bennett; Zoë Firth; Craig Colling; Jessica Penhallow; Johnny Downs; the CAMHS Digital Lab
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errSave
Ethnicity and involuntary hospitalisation: a study of intersectional effects
errSOCIAL PSYCHIATRY AND PSYCHIATRIC EPIDEMIOLOGY
IF3.5
err2025-04-01
err0
errOAAI
errAli, Rooble; Walker, Susan; Nyikavaranda, Patrick; Downs, Johnny; Patel, Rashmi; Khondoker, Mizanur; Bhui, Kamaldeep; Hayes, Richard D.; de Freitas, Daniela Fonseca
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errSave
Research Review: The impact of the COVID-19 pandemic on the mental health of children and young people with pre-existing mental health and neurodevelopmental conditions - a systematic review and meta-analysis of longitudinal studies
errJOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY
IF7
err2025-01-30
err0
errOAAI
errChing, Brian C. F.; Downs, Johnny; Zhang, Shuo; Cader, Hannah Abdul; Penhallow, Jessica; Voraite, Elvina; Popnikolova, Teodora; Wickersham, Alice; Parlatini, Valeria; Simonoff, Emily
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Are ADHD trajectories shaped by the social environment? A longitudinal study of maternal influences on the preschool origins of delay aversion
errJOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY
IF7
err2024-12-22
err0
errOAAI
errChan, Wendy W. Y.; Shum, Kathy Kar-man; Downs, Johnny; Sonuga-Barke, Edmund J. S.
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errSave
Personal independence payments among people who access mental health services: results from a novel data linkage
errBJPSYCH OPEN
IF3.5
err2024-09-24
err0
errOAAI
errStevelink, Sharon A. M.; Bakolis, Ioannis; Dorrington, Sarah; Downs, Johnny; Leal, Ray; Madan, Ira; Phillips, Ava; Geiger, Ben; Hotopf, Matthew; Fear, Nicola T.
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errSave
A framework for remotely enabled co-design with young people: its development and application with neurodiverse children and their caregivers
errFRONTIERS IN PSYCHIATRY
IF3.2
err2024-08-16
err2
errOAAI
errMorris, Anna Charlotte; Douch, Stephen; Popnikolova, Teodora; McGinley, Chris; Matcham, Faith; Sonuga-Barke, Edmund; Downs, Johnny
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errSave
The Social and Clinical Factors Associated With Mental Health Act (MHA) Use Among Children and Adolescent Inpatients: A Cohort Study Using Electronic Health Records
errBJPSYCH OPEN
IF3.5
err2024-08-01
err0
errOAAI
errWalker, Susan; Freitas, Daniela Fonseca; Downs, Johnny; Nyikavaranda, Patrick; Johnson, Sonia
errShare
errSave
Associations Between Pathways Into Care and Service Use and Involuntary Hospitalisation Among Children and Young People
errBJPSYCH OPEN
IF3.5
err2024-08-01
err0
errOAAI
errWalker, Susan; Freitas, Daniela Fonseca; Downs, Johnny; Nyikavaranda, Patrick; Johnson, Sonia
errShare
errSave
Attention-deficit/hyperactivity disorder (ADHD) in cultural context II: a comparison of the links between ADHD symptoms and waiting-related responses in Hong Kong and UK
errEUROPEAN CHILD & ADOLESCENT PSYCHIATRY
IF4.9
err2024-06-27
err1
errOAAI
errChan, Wendy W. Y.; Shum, Kathy Kar-man; Downs, Johnny; Liu, Ngai Tsit; Sonuga-Barke, Edmund J. S.
errShare
errSave

Research Directions

No research directions
Co-authors
Cooperation Journals
T
Terrie E. Moffitt
H-index: 215 · Papers: 922
M
Michael O’Donovan
H-index: 167 · Papers: 1.2K
M
Michael J. Owen
H-index: 164 · Papers: 1.2K
C
Christoph U. Correll
H-index: 145 · Papers: 2.0K
A
Andrew Pickles
H-index: 127 · Papers: 891
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