Social support and mastery influence the association between stress and poor physical health in parents caring for children with developmental disabilities.
Boosting both caregiver mastery and social support shields parents’ bodies from stress-related illness.
01Research in Context
What this study did
Cantwell et al. (2014) asked parents of kids with autism or Down syndrome to fill out surveys. They wanted to know if feeling in control (mastery) and having people to lean on (social support) could protect a parent’s body from the wear-and-tear of stress.
The team used a quasi-experimental design. They looked at how stress, mastery, and support worked together to predict physical health problems like headaches or fatigue.
What they found
Parents who felt high stress and low mastery reported poorer physical health. When parents had strong social support, the link between stress and poor health shrank.
In short, mastery and support acted like shock absorbers. High levels of both kept stress from hitting the body as hard.
How this fits with other research
Lovell et al. (2012) found the same stress-buffer effect two years earlier. They added cortisol data: parents with more support woke up with healthier stress-hormone levels.
Zhao et al. (2021) moved the outcome from body to mind. In 486 Chinese parents, support turned stress into resilience instead of illness.
Liao et al. (2025) flipped the lens forward: high stress dragged down how faithfully parents stuck to their child’s treatment plan. Family resilience—close to mastery—lifted it back up.
Together the four studies draw one line: caregiver resources (support, mastery, resilience) keep stress from spilling into health, mood, or service use.
Why it matters
You can’t erase the stress of meltdowns or IEP fights, but you can build the buffers. Start sessions by asking parents, “Who helps you?” and “What part of this feels within your control?” Link them to parent groups, respite vouchers, or short mastery wins like running a bedtime routine solo. Five minutes of resource-building may save years of health problems.
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02At a glance
03Original abstract
To date, much of the research linking the stress of caring for children with developmental disabilities (e.g. Autism & Down syndrome) with parental health outcomes have tended to concentrate on mental health with less attention paid to the physical health consequences. Thus, this study sought to explore the psychosocial predictors of poor physical health in these caring parents. One hundred and sixty-seven parents (109 caregivers and 58 control parents) completed measures of stress, child problem behaviours, social support, mastery and physical health. Parents of children with developmental disabilities had poorer physical health compared to control parents. Stress and mastery, but not social support and problem behaviours, were significant predictors of poor physical health within caring parents for children with developmental disabilities. However, the association between mastery and physical health was mediated by perceived stress such that those parents who were higher on mastery reported less stress and better physical health; furthermore, the association between stress and physical health was moderated by social support; those parents high on social support and low in stress had better physical health. These results indicate that the paths between psychosocial factors and poor physical health in the caring parents are working synergistically rather than in isolation. They also underscore the importance of providing multi-component interventions that offer a variety of psychosocial resources to meet the precise needs of the parents.
Research in developmental disabilities, 2014 · doi:10.1016/j.ridd.2014.05.012