Is Mobility Sufficient to Understand Community Participation of Adolescents and Young Adults With Cerebral Palsy? The Mediating and Moderating Roles of Contextual Factors.

Objective: To explore whether self-determination and family socioeconomic status (SES) mediate and/or moderate the relationship between mobility and community participation of adolescents and young adults with cerebral palsy (CP).

Design: Survey.

Setting: Online platform.

Participants: Of 55 eligible adolescents/young adults with CP, 50 agreed to participate and 2 were excluded. The final convenience sample included 48 individuals (N=48), aged 15-32 years, levels I-IV of the Gross Motor Function Classification System and I-II of the Communication Function Classification System.

Main Outcome Measures: The Temple University Community Participation Measure documented the amount, breadth, and insufficiency/sufficiency ratios of participation across 26 community settings. The ARC Self-determination Scale and the Mobility Scale of the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test (PEDI-CAT) measured individuals' self-determination (ie, autonomy, psychological empowerment, self-realization) and mobility skills, respectively. The Brazilian Economic Classification Criteria-2021 assessed family SES.

Results: Analyses of mediating/moderating effects revealed that the influence of individuals' mobility skills on their breadth of community participation was mediated by autonomy. Family SES moderated the indirect effect of mobility on community participation breadth through autonomy. When the model was adjusted for participants' age, individuals with higher SES reported greater breadth in community participation than those from moderate and lower SES for all mobility levels. However, the magnitude of the differences among individuals of different SES levels diminished as mobility increased.

Conclusions: The mobility skills of youths with CP influence their community participation through autonomy. To foster greater engagement of these individuals in the community, rehabilitation professionals should focus not only on improvement of mobility skills but also on the promotion of self-determined behaviors, especially autonomy.