Brothers and sisters and Down syndrome
The literature reporting on behavioural issues and adjustment in brothers and sisters of a child with Down syndrome provides conflicting findings – some studies reporting no effects and some reporting negative effects. Difference in measures and design may explain some of the contradictory findings.
Buckley SJ. Brothers and sisters and Down syndrome. Down Syndrome Research and Practice. 2007;12(1);8-8.
The literature reporting on behavioural issues and adjustment in brothers and sisters
of a child with Down syndrome provides conflicting findings – some studies reporting
no effects and some reporting negative effects. Difference in measures and design
may explain some of the contradictory findings.
A recent study finds no significant differences between the siblings of the children
with Down syndrome and a carefully matched comparison group on a wide range of measures.
In a recent paper, Monica Cuskelly and Pat Gunn acknowledge
some of the possible shortcomings of earlier studies. This study is designed to
address some of them by careful case-by-case matching rather than group matching,
consideration of adjustment as a multifaceted construct incorporating behavioural
and affective functioning and by collecting self-reports from brothers and sisters
as well as parents' reports on their behaviour.
They succeeded in studying 53 families with children with Down syndrome and 53 carefully
matched comparison families. The siblings studied in the two groups are matched
case by case on age, gender and birth order. The families were matched on number
of children and father's occupation. They collected questionnaire information from
both parents on the sibling's behaviour and from the siblings on their own behaviour
and on their own self-perceptions of their social acceptance, self-worth and competencies.
They collected information on daily activities and chores from both parents and
children by telephone interviews.
They found no significant differences between the siblings of the children with
Down syndrome and the comparison siblings on the measures of behaviour or competence.
They also found no differences in the children's own reports of their relationships
with friends or with academic performance. This is a reassuring finding for parents
with young children with Down syndrome. On the measures they took, life for the
brothers and sisters of children with Down syndrome was the same as for brothers
and sisters in families without a disabled child.
There were some interesting associations between sibling self-perceptions and parent
ratings of problem behaviour which applied to all the families studied. For example,
parents reported fewer externalising (e.g. acting out, aggressive behaviours) behaviours
for siblings who were more satisfied with their own behaviour and mothers reported
fewer internalising (e.g. anxiety, depression) problems for siblings with more positive
self-perceptions of social acceptance. There was also a link between household responsibilities
and adjustment with mothers reporting more externalising behaviours when girls reported
more chores and more internalising behaviours when boys contributed more caregiving.
There were no group differences in the number of chores reported but the children
reported more chores than their mothers acknowledged. These, and other findings
explored in the paper, make this an interesting study of sibling behaviours and
parent versus child perceptions as they apply in all families.
Sue Buckley is at
Down Syndrome Education International,
Portsmouth, Hampshire, UK.
Original research paper
- Cuskelly M, Gunn P. Adjustment of children who have a sibling
with Down syndrome: perspectives of mothers, fathers and children. Journal of Intellectual
Disability Research. 2007;50(12):917-925.