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Author

  • Helen Leonard
2017

Twenty-five year survival of children with intellectual disability in Western Australia

Bourke, J., Nembhard, W. N., Wong, K. & Leonard, H., 1 Sep 2017, In : Journal of Pediatrics. 188, p. 232-239.e2

Research output: Contribution to journalArticle

6 Citations (Scopus)

Exploring quality of life of children with cerebral palsy and intellectual disability: What are the important domains of life?

Davis, E., Reddihough, D., Murphy, N., Epstein, A., Reid, S. M., Whitehouse, A., Williams, K., Leonard, H. & Downs, J., 1 Nov 2017, In : Child: Care, Health and Development. 43, 6, p. 854-860 7 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2013

Assessment and management of nutrition and growth in rett syndrome

Leonard, H., Ravikumara, M., Baikie, G., Naseem, N., Ellaway, C., Percy, A., Abraham, S., Geerts, S., Lane, J., Jones, M., Bathgate, K. & Downs, J., Oct 2013, In : Journal of Pediatric Gastroenterology and Nutrition. 57, 4, p. 451-460

Research output: Contribution to journalArticle

Open Access
30 Citations (Scopus)
2019

Cyclin-Dependent Kinase-Like 5 Deficiency Disorder: Clinical Review

Olson, H. E., Demarest, S. T., Pestana-Knight, E. M., Swanson, L. C., Iqbal, S., Lal, D., Leonard, H., Cross, J. H., Devinsky, O. & Benke, T. A., 1 Aug 2019, In : Pediatric Neurology. 97, p. 18-25 8 p.

Research output: Contribution to journalReview article

Open Access
12 Citations (Scopus)
2017

Building the repertoire of measures of walking in Rett syndrome

Stahlhut, M., Downs, J., Leonard, H., Bisgaard, A. M. & Nordmark, E., 11 Sep 2017, In : Disability and Rehabilitation. 39, 19, p. 1926-1931 6 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2016

Onset of maternal psychiatric disorders after the birth of a child with autism spectrum disorder: A retrospective cohort study

Fairthorne, J., Jacoby, P., Bourke, J., De Klerk, N. & Leonard, H., 2016, In : Autism. 20, 1, p. 37-44

Research output: Contribution to journalArticle

7 Citations (Scopus)

Young people with intellectual disability transitioning to adulthood: Do behaviour trajectories differ in those with and without down syndrome?

Foley, K. R., Taffe, J., Bourke, J., Einfeld, S. L., Tonge, B. J., Trollor, J. & Leonard, H., 8 Jul 2016, In : PLoS One. 11, 7, p. 1-14

Research output: Contribution to journalArticle

Open Access
10 Citations (Scopus)
2020

The contributions of fetal growth restriction and gestational age to developmental outcomes at 12 months of age: A cohort study

Baumgartel, K., Jensen, L., White, S. W., Wong, K., Straker, L., Leonard, H., Finlay-Jones, A. & Downs, J., Mar 2020, In : Early Human Development. 142, 104951.

Research output: Contribution to journalArticle

2011

Longitudinal hand function in Rett syndrome

Downs, J., Bebbington, A., Kaufmann, W. E. & Leonard, H., 2011, In : Journal of Child Neurology. 26, 3, p. 334-340

Research output: Contribution to journalArticle

9 Citations (Scopus)
2017

Use of the ketogenic diet to manage refractory epilepsy in CDKL5 disorder: Experience of > 100 patients

Lim, Z., Wong, K., Olson, H. E., Bergin, A. M., Downs, J. & Leonard, H., Aug 2017, In : Epilepsia. 58, 8, p. 1415-1422 8 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)
2011

Bone mineral content and density in rett syndrome and their contributing factors

Jefferson, A. L., Woodhead, H. J., Fyfe, S., Briody, J., Bebbington, A., Strauss, B. J., Jacoby, P. & Leonard, H., 2011, In : Pediatric Research. 69, 4, p. 293-298

Research output: Contribution to journalArticle

26 Citations (Scopus)
2018
3 Citations (Scopus)
2013

Neonatal outcomes after preterm birth by mothers' health insurance status at birth: a retrospective cohort study.

Einarsdottir, K., Haggar, F., Langridge, A., Gunnell, A. S., Leonard, H. & Stanley, F., 2013, In : BMC Health Services Research. 13, p. 7pp

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
222 Downloads (Pure)
2020

Systematic Review and Meta-analysis: Mental Health in Children With Neurogenetic Disorders Associated With Intellectual Disability

Glasson, E. J., Buckley, N., Chen, W., Leonard, H., Epstein, A., Skoss, R., Jacoby, P., Blackmore, A. M., Bourke, J. & Downs, J., Sep 2020, In : Journal of the American Academy of Child and Adolescent Psychiatry. 59, 9, p. 1036-1048 13 p.

Research output: Contribution to journalReview article

1 Citation (Scopus)
2014

Twenty years of surveillance in Rett syndrome: what does this tell us?

Anderson, A. M., Wong, K., Jacoby, P., Downs, J. & Leonard, H., 19 Jun 2014, In : Orphanet Journal of Rare Diseases. 9, 1, p. 9pp

Research output: Contribution to journalArticle

Open Access
45 Citations (Scopus)
2018

Parent-reported health-related quality of life of children with Down syndrome: A descriptive study

Shields, N., Leonard, H., Munteanu, S., Bourke, J., Lim, P., Taylor, N. F. & Downs, J., Apr 2018, In : Developmental Medicine and Child Neurology. 60, 4, p. 402-408

Research output: Contribution to journalArticle

3 Citations (Scopus)
2013
22 Citations (Scopus)
2015
Open Access
File
21 Citations (Scopus)
407 Downloads (Pure)
2013

Maternal Conditions and Perinatal Characteristics Associated with Autism Spectrum Disorder and Intellectual Disability

Langridge, A., Glasson, E., Nassar, N., Jacoby, P., Pennell, C., Hagan, R., Bourke, J., Leonard, H. & Stanley, F., 2013, In : PLoS One. 8, 1, p. 10pp

Research output: Contribution to journalArticle

Open Access
File
67 Citations (Scopus)
151 Downloads (Pure)
2016

Validating the rett syndrome gross motor scale

Downs, J., Stahlhut, M., Wong, K., Syhler, B., Bisgaard, A. M., Jacoby, P. & Leonard, H., 22 Jan 2016, In : PLoS One. 11, 1, p. 1-11 e0147555.

Research output: Contribution to journalArticle

Open Access
File
23 Citations (Scopus)
206 Downloads (Pure)
2019
1 Citation (Scopus)
2016
10 Citations (Scopus)
2015

Changes in caesarean delivery rates in Western Australia from 1995 to 2010 by gestational age at birth

Einarsdõttir, K., Ball, S., Pereira, G., Griffin, C., Jacoby, P., De Klerk, N., Leonard, H. & Stanley, F., 25 Jun 2015, In : Paediatric and Perinatal Epidemiology. 29, 4, p. 290-298 9 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2013

Caring for a child with severe intellectual disability in China: The example of Rett syndrome

Lim, F., Downs, J., Li, J., Bao, X-H. & Leonard, H., 2013, In : Disability and Rehabilitation. 35, p. 343-351

Research output: Contribution to journalArticle

7 Citations (Scopus)
2015

Onset of maternal psychiatric disorders after the birth of a child with intellectual disability: A retrospective cohort study

Fairthorne, J., Jacoby, P., Bourke, J. P., De Klerk, N. & Leonard, H., 2015, In : Journal of Psychiatric Research. 61, p. 223-230

Research output: Contribution to journalArticle

10 Citations (Scopus)
2018

Intellectual disability in children conceived using assisted reproductive technology

Hansen, M., Greenop, K. R., Bourke, J., Baynam, G., Hart, R. J. & Leonard, H., 1 Dec 2018, In : Pediatrics. 142, 6, e20181269.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2011

Autism and intellectual disability are differentially related to sociodemographic background at birth

Leonard, H., Glasson, E., Nassar, N., Whitehouse, A., Bebbington, A., Bourke, J., Jacoby, P., Dixon, G., Malacova, E., Bower, C. & Stanley, F., 2011, In : PLoS One. 6, 3, p. e17875

Research output: Contribution to journalArticle

Open Access
64 Citations (Scopus)
2018

What effect does regular exercise have on oxidative stress in people with Down syndrome? A systematic review with meta-analyses

Shields, N., Downs, J., de Haan, J. B., Taylor, N. F., Torr, J., Fernhall, B., Kingsley, M., Mnatzaganian, G. & Leonard, H., 1 Jun 2018, In : Journal of Science and Medicine in Sport. 21, 6, p. 596-603 8 p.

Research output: Contribution to journalReview article

2 Citations (Scopus)
2017

Expanding the clinical picture of the MECP2 Duplication syndrome

Lim, Z., Downs, J., Wong, K., Ellaway, C. & Leonard, H., 1 Apr 2017, In : Clinical Genetics. 91, 4, p. 557-563 7 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)
2016
2 Citations (Scopus)
2012

To Feel Belonged: The Voices of Children and Youth with Disabilities on the Meaning of Wellbeing

Foley, K. R., Blackmore, A. M., Girdler, S., O'Donnell, M., Glauert, R., Llewellyn, G. & Leonard, H., 2012, In : Child Indicators Research. 5, 2, p. 375-391

Research output: Contribution to journalArticle

42 Citations (Scopus)
2013

Application of Population-Based Linked Data to the Study of Intellectual Disability and Autism

Leonard, H., Glasson, E. J., Bebbington, A., Hammond, G., Croft, D., Pikora, T., Fairthorne, J., O'Donnell, M., O'Leary, C. M., Hansen, M., Watson, L., Francis, R. W., Carter, K., Mckenzie, A., Bower, C., Bourke, J. & Glauert, R., 2013, International Review of Research in Developmental Disabilities. Richard, C. U. (ed.). Academic Press, p. 281-327

Research output: Chapter in Book/Conference paperOther chapter contribution

11 Citations (Scopus)
2018

Respiratory morbidity in Rett syndrome: an observational study

MacKay, J., Leonard, H., Wong, K., Wilson, A. & Downs, J., 1 Sep 2018, In : Developmental Medicine and Child Neurology. 60, 9, p. 951-957 7 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
2019

Birth seasonality and risk of autism spectrum disorder

Lee, B. K., Gross, R., Francis, R. W., Karlsson, H., Schendel, D. E., Sourander, A., Reichenberg, A., Parner, E. T., Hornig, M., Yaniv, A., Leonard, H. & Sandin, S., 15 Aug 2019, In : European Journal of Epidemiology. 34, 8, p. 785-792 8 p.

Research output: Contribution to journalArticle

Open Access
5 Citations (Scopus)
2020

Stillbirth risk prediction using machine learning for a large cohort of births from Western Australia, 1980–2015

Malacova, E., Tippaya, S., Bailey, H. D., Chai, K., Farrant, B. M., Gebremedhin, A. T., Leonard, H., Marinovich, M. L., Nassar, N., Phatak, A., Raynes-Greenow, C., Regan, A. K., Shand, A. W., Shepherd, C. C. J., Srinivasjois, R., Tessema, G. A. & Pereira, G., 1 Dec 2020, In : Scientific Reports. 10, 1, 5354.

Research output: Contribution to journalArticle

Open Access

Gastrostomy and quality of life in children with intellectual disability: A qualitative study

Glasson, E. J., Forbes, D., Ravikumara, M., Nagarajan, L., Wilson, A., Jacoby, P., Wong, K., Leonard, H. & Downs, J., 8 Apr 2020, In : Archives of Disease in Childhood.

Research output: Contribution to journalArticle

2019

The incidence, prevalence and clinical features of MECP2 duplication syndrome in Australian children

Giudice-Nairn, P., Downs, J., Wong, K., Wilson, D., Ta, D., Gattas, M., Amor, D., Thompson, E., Kirrali-Borri, C., Ellaway, C. & Leonard, H., 12 Feb 2019, In : Journal of Paediatrics and Child Health.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2017

Feasibility of assessing diet with a mobile food record for adolescents and young adults with Down syndrome

Bathgate, K. E., Sherriff, J. L., Leonard, H., Dhaliwal, S. S., Delp, E. J., Boushey, C. J. & Kerr, D. A., 13 Mar 2017, In : Nutrients. 9, 3, 273.

Research output: Contribution to journalArticle

Open Access
5 Citations (Scopus)
2015

The trajectories of sleep disturbances in Rett syndrome

Wong, K., Leonard, H., Jacoby, P., Ellaway, C. & Downs, J., Apr 2015, In : Journal of Sleep Research. 24, p. 223-233

Research output: Contribution to journalArticle

Open Access
35 Citations (Scopus)
2014

Community participation for girls and women living with Rett syndrome

Andrews, J., Leonard, H., Hammond, G., Girdler, S., Rajapaksa, R., Bathgate, K. & Downs, J., Jun 2014, In : Disability and Rehabilitation. 36, 11, p. 894-899

Research output: Contribution to journalArticle

10 Citations (Scopus)
2020

Modifiable child and caregiver factors that influence community participation among children with Down syndrome

Shields, N., Epstein, A., Jacoby, P., Kim, R., Leonard, H., Reddihough, D., Whitehouse, A., Murphy, N. & Downs, J., 17 Jun 2020, In : Disability and Rehabilitation.

Research output: Contribution to journalArticle

Risk of Hospitalizations Following Gastrostomy in Children with Intellectual Disability

Jacoby, P., Wong, K., Srasuebkul, P., Glasson, E. J., Forbes, D., Ravikumara, M., Wilson, A., Nagarajan, L., Bourke, J., Trollor, J., Leonard, H. & Downs, J., Feb 2020, In : Journal of Pediatrics. 217, p. 131-138.e10

Research output: Contribution to journalArticle

Open Access
3 Citations (Scopus)
2015

The increasing prevalence of reported diagnoses of childhood psychiatric disorders: a descriptive multinational comparison

Atladottir, H. O., Gyllenberg, D., Langridge, A., Sandin, S., Hansen, S. N., Leonard, H., Gissler, M., Reichenberg, A., Schendel, D. E., Bourke, J., Hultman, C. M., Grice, D. E., Buxbaum, J. D. & Parner, E. T., Feb 2015, In : European Child and Adolescent Psychiatry. 24, 2, p. 173-183 11 p.

Research output: Contribution to journalArticle

127 Citations (Scopus)
2011

Leisure participation for school-aged children with Down syndrome

Oates, A., Bebbington, A., Bourke, J. & Leonard, H., 2011, In : Disability and Rehabilitation. 33, 19-20, p. 1880-1889

Research output: Contribution to journalArticle

44 Citations (Scopus)
2017

Patterns of sedentary time and ambulatory physical activity in a Danish population of girls and women with Rett syndrome

Stahlhut, M., Downs, J., Aadahl, M., Leonard, H., Bisgaard, A. M. & Nordmark, E., 2 Oct 2017, In : Disability and Rehabilitation. p. 1-9 9 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2014

Experiences Impacting the Quality of Life of Mothers of Children With Autism and Intellectual Disability

Fairthorne, J., Fisher, C., Bourke, J. & Leonard, H., 2014, In : Psychology Research. 4, 8, p. 666-684

Research output: Contribution to journalArticle

Open Access
2016
11 Citations (Scopus)
2017

Impacts of caring for a child with the CDKL5 disorder on parental wellbeing and family quality of life

Mori, Y., Downs, J., Wong, K., Anderson, B., Epstein, A. & Leonard, H., 19 Jan 2017, In : Orphanet Journal of Rare Diseases. 12, 1, 16.

Research output: Contribution to journalArticle

Open Access
14 Citations (Scopus)
2011

Use of equipment and respite services and caregiver health among Australian families living with Rett syndrome

Urbanowicz, A., Downs, J., Bebbington, A., Jacoby, P., Girdler, S. & Leonard, H., 2011, In : Research in Autism Spectrum Disorders. 5, 2, p. 722-732

Research output: Contribution to journalArticle

13 Citations (Scopus)