Volunteering and its association with participation and life satisfaction following traumatic brain injury.

The study is cross-sectional and retrospective, so it cannot prove that volunteering causes better outcomes. It is equally possible that people who are already happier and more capable are more likely to volunteer. The data came from a single center, which may limit how well the results apply to other populations. The effect sizes for life satisfaction and social relations were small, meaning the differences between volunteers and non-volunteers might not be clinically noticeable for individual patients. The study did not control for depression or anxiety, which are common after TBI and affect participation. Volunteering was measured by a single question, so the type, duration, and quality of the volunteer work were unknown.

The authors report no conflict of interest. The work was funded by the National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR).

Do not assume that prescribing volunteering will improve a patient's life satisfaction or employment status. The study shows an association, not causation, and the differences in life satisfaction were small. Additionally, volunteers were already more functional and independent than non-volunteers, so the benefits might reflect pre-existing health rather than the act of volunteering itself.