Helen Margaret Leonard (H Leonard, Helen Leonard)

Scopus Author ID ResearcherID ORCID

Publication Activity (10 Years)

Years Active: 2017-2024
Publications (10 Years): 45

Top Topics

Intellectual Disability

Systematic Review

Temporal Lobe Epilepsy

Top Venues

Developmental medicine and child neurology

Orphanet journal of rare diseases

This page only lists publications with an associated author ORCID identifier.

Publications

Jacinta M Saldaris, Jeremiah Ayalde, Samali Kankanange, Jessica Keeley, Helen Margaret Leonard, Peter Jacoby, Eric D Marsh, Timothy A Benke, Scott T Demarest, Jennepher Anne Downs
Parent-reported outcome measures evaluating communication in individuals with rare neurodevelopmental disorders: A systematic review. International journal of language & communication disorders (2024)
Kingsley Wong, Mohammed Junaid, Solomon Alexander, Heather E Olson, Elia M Pestana-Knight, Rajsekar R Rajaraman, Jenny Downs, Helen Margaret Leonard
Caregiver Perspective of Benefits and Side Effects of Anti-Seizure Medications in CDKL5 Deficiency Disorder from an International Database. CNS drugs 38 (9) (2024)
Kingsley Wong, Mohammed Junaid, Solomon Alexander, Heather E Olson, Elia M Pestana-Knight, Rajsekar R Rajaraman, Jenny Downs, Helen Margaret Leonard
Caregiver Perspective of Benefits and Side Effects of Anti-Seizure Medications in CDKL5 Deficiency Disorder from an International Database. CNS drugs 38 (9) (2024)
Kingsley Wong, Mohammed Junaid, Solomon Alexander, Heather E Olson, Elia M Pestana-Knight, Rajsekar R Rajaraman, Jenny Downs, Helen Margaret Leonard
Caregiver Perspective of Benefits and Side Effects of Anti-Seizure Medications in CDKL5 Deficiency Disorder from an International Database. CNS drugs 38 (9) (2024)
Kingsley Wong, Mohammed Junaid, Solomon Alexander, Heather E Olson, Elia M Pestana-Knight, Rajsekar R Rajaraman, Jenny Downs, Helen Margaret Leonard
Caregiver Perspective of Benefits and Side Effects of Anti-Seizure Medications in CDKL5 Deficiency Disorder from an International Database. CNS drugs (2024)
Kingsley Wong, Mohammed Junaid, Solomon Alexander, Heather E Olson, Elia M Pestana-Knight, Rajsekar R Rajaraman, Jenny Downs, Helen Margaret Leonard
Caregiver Perspective of Benefits and Side Effects of Anti-Seizure Medications in CDKL5 Deficiency Disorder from an International Database. CNS drugs 38 (9) (2024)
Jacinta M Saldaris, Peter Jacoby, Jennepher Anne Downs, Eric D Marsh, Helen Margaret Leonard, Elia M Pestana Knight, Rajsekar Rajaraman, Judith Weisenberg, Bernhard Suter, Heather E Olson, Dana Price, William Hong, Erin Prange, Timothy A Benke, Scott T Demarest
Psychometric evaluation of clinician- and caregiver-reported clinical severity assessments for individuals with CDKL5 deficiency disorder. Epilepsia (2024)
Kingsley Wong, Mohammed Junaid, Solomon Alexander, Heather E Olson, Elia M Pestana-Knight, Rajsekar R Rajaraman, Jenny Downs, Helen Margaret Leonard
Caregiver Perspective of Benefits and Side Effects of Anti-Seizure Medications in CDKL5 Deficiency Disorder from an International Database. CNS drugs 38 (9) (2024)
Dani John Cherian, Daniel Ta, Jeremy Smith, Jennepher Anne Downs, Helen Margaret Leonard
How Families Manage the Complex Medical Needs of Their Children with MECP2 Duplication Syndrome. Children (Basel, Switzerland) 10 (7) (2023)
Suzy M Teutsch, Yvonne A Zurynski, Guy D Eslick, Marie L Deverell, John Chrisodoulou, Helen Margaret Leonard, Troy Dalkeith, Sandra L J Johnson, Elizabeth J Elliott
Australian children living with rare diseases: health service use and barriers to accessing care. World journal of pediatrics : WJP (2023)
Suzy M Teutsch, Yvonne A Zurynski, Guy D Eslick, Marie L Deverell, John Chrisodoulou, Helen Margaret Leonard, Troy Dalkeith, Sandra L J Johnson, Elizabeth J Elliott
Australian children living with rare diseases: health service use and barriers to accessing care. World journal of pediatrics : WJP (2023)
Cayla Kay, Helen Margaret Leonard, Jeremy Smith, Kingsley Wong, Jennepher Anne Downs
Genotype and sleep independently predict mental health in Rett syndrome: an observational study. Journal of medical genetics (2023)
Kingsley Wong, George Davies, Helen Margaret Leonard, Jennepher Anne Downs, Mohammed Junaid, Sam Amin
Growth patterns in individuals with CDKL5 deficiency disorder. Developmental medicine and child neurology (2023)
Kingsley Wong, Mohammed Junaid, Scott Demarest, Jacinta Saldaris, Tim A Benke, Eric D Marsh, Jenny Downs, Helen Margaret Leonard
Factors influencing the attainment of major motor milestones in CDKL5 deficiency disorder. European journal of human genetics : EJHG (2022)
Kingsley Wong, Mohammed Junaid, Scott Demarest, Jacinta Saldaris, Tim A Benke, Eric D Marsh, Jenny Downs, Helen Margaret Leonard
Correction to: Factors influencing the attainment of major motor milestones in CDKL5 deficiency disorder. European journal of human genetics : EJHG (2022)
Yvonne Yee Lok Lai, Jennepher Anne Downs, Kingsley Wong, Sobia Zafar, James Laurence Walsh, Helen Margaret Leonard
Enablers and barriers in dental attendance in Rett syndrome: an international observational study. Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry 42 (6) (2022)
Yvonne Yee Lok Lai, Jennepher Anne Downs, Sobia Zafar, Kingsley Wong, James Laurence Walsh, Helen Margaret Leonard
"What about us?"- the drawbacks of current bruxism assessment criteria in evaluating vulnerable groups. Oral diseases (2022)
Peter Jacoby, Andrew J O Whitehouse, Helen Margaret Leonard, Jacinta M Saldaris, Scott Demarest, Tim Benke, Jennepher Anne Downs
Devising a Missing Data Rule for a Quality of Life Questionnaire-A Simulation Study. Journal of developmental and behavioral pediatrics : JDBP 43 (6) (2022)
Daniel Ta, Jenny Downs, Gareth Baynam, Andrew Wilson, Peter Richmond, Helen Margaret Leonard
A brief history of MECP2 duplication syndrome: 20-years of clinical understanding. Orphanet journal of rare diseases 17 (1) (2022)
Catherine S Choong, Gillian M Nixon, Amanda Marie Blackmore, Wai Chen, Peter Jacoby, Helen Margaret Leonard, Antony R Lafferty, Geoffrey R Ambler, Nitin Kapur, Philip B Bergman, Cara Schofield, Chris Seton, Andrew Tai, Elaine Tham, Komal Ashokbhai Vora, Patricia Crock, Charles F Verge, Yassmin Musthaffa, Greg Blecher, Andrew Wilson, Jennepher Anne Downs
Daytime sleepiness and emotional and behavioral disturbances in Prader-Willi syndrome. European journal of pediatrics 181 (6) (2022)
Jennepher Anne Downs, Amanda Marie Blackmore, Kingsley Wong, Nicholas Buckley, Meir Lotan, Cochavit Elefant, Helen Margaret Leonard, Michelle Stahlhut
Can telehealth increase physical activity in individuals with Rett syndrome? A multicentre randomized controlled trial. Developmental medicine and child neurology (2022)
Peter Jacoby, Katrina Williams, Dinah Susan Reddihough, Helen Margaret Leonard, Andrew Whitehouse, Jennepher Anne Downs
Modelling quality of life in children with intellectual disability using regression trees. Developmental medicine and child neurology 64 (9) (2022)
Helen Margaret Leonard, Wendy Gold, Rodney Samaco, Mustafa Sahin, Timothy Benke, Jenny Downs
Improving clinical trial readiness to accelerate development of new therapeutics for Rett syndrome. Orphanet journal of rare diseases 17 (1) (2022)
Gavin Pereira, Richard W Francis, Gissler Mika, Stefan Nygaard Hansen, Arad Kodesh, Helen Margaret Leonard, Stephen Z Levine, Vera Ruth Mitter, Eric T Parner, Annette K Regan, Abraham Reichenberg, Sven Sandin, Suominen Auli, Diana E Schendel
Optimal interpregnancy interval in autism spectrum disorder: A multi-national study of a modifiable risk factor. Autism research : official journal of the International Society for Autism Research 14 (11) (2021)
Paolo La Montanara, Arnau Hervera, Lucas L Baltussen, Thomas H Hutson, Ilaria Palmisano, Francesco De Virgiliis, Guiping Kong, Jessica S Chadwick, Yunan Gao, Katalin Bartus, Qasim A Majid, Nikos Gorgoraptis, Kingsley Wong, Jennepher Anne Downs, Tommaso Pizzorusso, Sila K Ultanir, Helen Margaret Leonard, Hongwei Yu, David S Millar, Istvan Nagy, Nicholas D Mazarakis, Simone Di Giovanni
Cyclin-dependent-like kinase 5 is required for pain signaling in human sensory neurons and mouse models. Science translational medicine 12 (551) (2021)
Yvonne Yee Lok Lai, Jennepher Anne Downs, Sobia Zafar, Kingsley Wong, James Laurence Walsh, Helen Margaret Leonard
Oral health care and service utilisation in individuals with Rett syndrome: an international cross-sectional study. Journal of intellectual disability research : JIDR 65 (6) (2021)
Helen Margaret Leonard, Mohammed Junaid, Kingsley Wong, Alex A Aimetti, Elia Pestana Knight, Jennepher Anne Downs
Influences on the trajectory and subsequent outcomes in CDKL5 deficiency disorder. Epilepsia (2021)
Conor I MacKay, Kingsley Wong, Scott T Demarest, Tim A Benke, Jennepher Anne Downs, Helen Margaret Leonard
Exploring genotype-phenotype relationships in the CDKL5 deficiency disorder using an international dataset. Clinical genetics 99 (1) (2020)
Katrina Williams, Peter Jacoby, Andrew Whitehouse, Rachel Kim, Amy Epstein, Nada Murphy, Susan M Reid, Helen Margaret Leonard, Dinah Reddihough, Jennepher Anne Downs
Functioning, participation, and quality of life in children with intellectual disability: an observational study. Developmental medicine and child neurology 63 (1) (2020)
Jennepher Anne Downs, Meir Lotan, Cochavit Elefant, Helen Margaret Leonard, Kingsley Wong, Nicholas Buckley, Michelle Stahlhut
Implementing telehealth support to increase physical activity in girls and women with Rett syndrome-ActivRett: protocol for a waitlist randomised controlled trial. BMJ open 10 (12) (2020)
Nora Shields, Amy Epstein, Peter Jacoby, Rachel Kim, Helen Margaret Leonard, Dinah Susan Reddihough, Andrew J O Whitehouse, Nada Murphy, Jennepher Anne Downs
Modifiable child and caregiver factors that influence community participation among children with Down syndrome. Disability and rehabilitation 44 (4) (2020)
Conor I MacKay, David Bick, Jeremy W Prokop, Ivan Muñoz, John Rouse, Jennepher Anne Downs, Helen Margaret Leonard
Expanding the phenotype of the CDKL5 deficiency disorder: Are seizures mandatory? American journal of medical genetics. Part A 182 (5) (2020)
Yvonne Yee Lok Lai, Sobia Zafar, Helen Margaret Leonard, James Laurence Walsh, Jennepher Anne Downs
Oral health education and promotion in special needs children: Systematic review and meta-analysis. Oral diseases (2020)
Jonathan Mendoza, Jennepher Anne Downs, Kingsley Wong, Helen Margaret Leonard
Determinants of quality of life in Rett syndrome: new findings on associations with genotype. Journal of medical genetics 58 (9) (2020)
Ifrah Abdullahi, Kingsley Wong, Nicholas de Klerk, Raewyn Mutch, Emma J Glasson, Jennepher Anne Downs, Sarah Cherian, Helen Margaret Leonard
Hospital admissions in children with developmental disabilities from ethnic minority backgrounds. Developmental medicine and child neurology 62 (4) (2019)
Yuka Mori, Jenny Downs, Kingsley Wong, Jane Heyworth, Helen Margaret Leonard
Comparing Parental Well-Being and Its Determinants Across Three Different Genetic Disorders Causing Intellectual Disability. Journal of autism and developmental disorders 48 (5) (2019)
Ifrah Abdullahi, Kingsley Wong, Emma Glasson, Raewyn Mutch, Nicholas de Klerk, Jenny Downs, Sarah Cherian, Helen Margaret Leonard
Are preterm birth and intra-uterine growth restriction more common in Western Australian children of immigrant backgrounds? A population based data linkage study. BMC pregnancy and childbirth 19 (1) (2019)
Natalie A Strobel, Jenny Bourke, Helen Margaret Leonard, Alice M Richardson, Karen M Edmond, Daniel McAullay
Assessing the quality, efficiency and usefulness of the Western Australian population-based Intellectual Disability Exploring Answers (IDEA) surveillance system: a surveillance system evaluation. BMJ open 9 (10) (2019)
Yuka Mori, Jenny Downs, Kingsley Wong, Helen Margaret Leonard
Longitudinal effects of caregiving on parental well-being: the example of Rett syndrome, a severe neurological disorder. European child & adolescent psychiatry 28 (4) (2018)
Jenny Bourke, Kingsley Wong, Helen Margaret Leonard
Validation of intellectual disability coding through hospital morbidity records using an intellectual disability population-based database in Western Australia. BMJ open 8 (1) (2018)
Y Y L Lai, K Wong, N M King, J Downs, Helen Margaret Leonard
Oral health experiences of individuals with Rett syndrome: a retrospective study. BMC oral health 18 (1) (2018)
Kate Brameld, Katrina Spilsbury, Lorna Rosenwax, Helen Margaret Leonard, James Semmens
Use of health services in the last year of life and cause of death in people with intellectual disability: a retrospective matched cohort study. BMJ open 8 (2) (2018)
Fatma Haddad, Jenny Bourke, Kingsley Wong, Helen Margaret Leonard
An investigation of the determinants of quality of life in adolescents and young adults with Down syndrome. PloS one 13 (6) (2018)
Jessica Mackay, Jenny Downs, Kingsley Wong, Jane Heyworth, Amy Epstein, Helen Margaret Leonard
Autonomic breathing abnormalities in Rett syndrome: caregiver perspectives in an international database study. Journal of neurodevelopmental disorders 9 (2017)
Yuka Mori, Jenny Downs, Kingsley Wong, Barbara Anderson, Amy Epstein, Helen Margaret Leonard
Impacts of caring for a child with the CDKL5 disorder on parental wellbeing and family quality of life. Orphanet journal of rare diseases 12 (1) (2017)