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Research

Exploring genotype-phenotype relationships in the CDKL5 deficiency disorder using an international dataset

Characterized by early-onset seizures, global developmental delay and severe motor deficits, CDKL5 deficiency disorder is caused by pathogenic variants in the cyclin-dependent kinase-like 5 gene. Previous efforts to investigate genotype-phenotype relationships have been limited due to small numbers of recurrent mutations and small cohort sizes. Using data from the International CDKL5 Disorder Database we examined genotype-phenotype relationships for 13 recurrent CDKL5 variants and the previously analyzed historic variant groupings. We have applied the CDKL5 Developmental Score (CDS) and an adapted version of the CDKL5 Clinical Severity Assessment (CCSA), to grade the severity of phenotype and developmental outcomes for 285 individuals with CDKL5 variants.

Research

Determinants of sleep problems in children with intellectual disability

Children with intellectual disabilities are more likely to experience sleep disorders of insomnia, excessive daytime sleepiness and sleep breathing disorders than typically developing children. The present study examined risk factors for these sleep disorders in 447 children (aged 5-18 years), diagnosed with an intellectual disability and comorbid autism spectrum disorder, cerebral palsy, Down syndrome or Rett syndrome. Primary caregivers reported on their child's sleep using the Sleep Disturbance Scale for Children (SDSC), as well as medical comorbidities and functional abilities.

Research

Association between ABO, Rh blood groups, lip and dermatoglyphic patterns, and nonsyndromic oral clefts: A case-control study

The objective of the study is to determine the association between nonsyndromic oral clefts (OC) in children and ABO, Rh blood groups, lip, and dermatoglyphic patterns of their unaffected parents.

Research

Optimal interpregnancy interval in autism spectrum disorder: A multi-national study of a modifiable risk factor

It is biologically plausible that risk of autism spectrum disorder (ASD) is elevated by both short and long interpregnancy intervals (IPI). We conducted a retrospective cohort study of singleton, non-nulliparous live births.

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Trends in pre-existing mental health disorders among parents of infants born in Western Australia from 1990 to 2005

From 1990 to 2005, there was an increase in prevalence of parents with a prior history of mental health disorders in WA.

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The CDKL5 disorder is an independent clinical entity associated with early-onset encephalopathy

The clinical understanding of the CDKL5 disorder remains limited, with most information being derived from small patient groups seen at individual centres.

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Family Functioning in Families with a Child with Down syndrome: A Mixed Methods Approach

Family Functioning in Families with a Child with Down syndrome: A Mixed Methods Approach...

Research

It's not what you were expecting, but it's still a beautiful journey: The experience of mothers of children with Down syndrome

The purpose of this study was to describe qualitatively the experience of parenting for mothers of a child with Down syndrome.

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Leisure participation for school-aged children with Down syndrome

Leisure participation for school-aged children with Down syndrome.

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

This study assessed factors that could influence equipment and respite services use among Australian families caring for a girl/woman with Rett syndrome and...