The wellbeing of siblings of children with disabilities.
Family poverty, not disability, drives most small wellbeing gaps between siblings.
01Research in Context
What this study did
The team tracked 3,600 Australian families for two years. Half had a child with any disability. Half had only typically-developing kids.
They measured sibling happiness, behavior, and school life at three points. Then they compared the two groups.
What they found
Before any math, brothers and sisters of disabled kids scored only a hair lower on wellbeing. After the researchers counted family income and parent jobs, the gap vanished.
Two years later, the siblings looked the same as peers. Disability alone did not predict problems.
How this fits with other research
Older papers warned that every sibling might suffer. Meltzer (1983) first said risk is personal, not automatic. The new data back that idea with national numbers.
Some small studies still find trouble. LeFrancois et al. (1993) saw more behavior problems in ASD siblings, but their kids came from clinics. The 2014 study used the whole population, so it washed out rare cases.
Chien et al. (2017) reported poorer school attitude in ASD siblings. They looked only at school, not total wellbeing. Different yardsticks explain the clash.
Why it matters
Stop assuming siblings need therapy just because a brother or sister has a diagnosis. Ask about money stress, parent work hours, and neighborhood safety first. If those look fine, the sibling is probably okay. Save your clinical hours for families who show real red flags.
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02At a glance
03Original abstract
(1) to estimate the extent of differences in wellbeing between siblings of children with disabilities or long-term health conditions and siblings of 'typically developing' children in a nationally representative cohort of Australian children (the Longitudinal Study of Australian Children); (2) to determine whether any between-group differences in wellbeing may be potentially attributable to between-group differences in exposure to socio-economic disadvantage. The results of our analyses were consistent with the existing literature in indicating that, in unadjusted comparisons, the siblings of children with long-term health conditions or disabilities: (1) had lower wellbeing than their peers on some, but not all, indicators of wellbeing; and (2) that where differences did exist the effect sizes were small. Our results add to the existing literature in: (1) indicating that adjusting for between-group differences in exposure to low SEP and associated adversities eliminated the statistical significance of unadjusted comparisons in the majority of instances; and (2) failing to find any evidence of deterioration over time in the wellbeing of siblings with long-term health conditions or disabilities over a two-year period from age 4/5 to age 6/7.
Research in developmental disabilities, 2014 · doi:10.1016/j.ridd.2014.05.001