Individual, family, and peer factors associated with the quality of sibling relationships in families of youths with spina bifida.

Based on a social-ecological theoretical framework, this study sought to identify key individual (attitude toward spina bifida), family (satisfaction with family functioning), and peer (peer support) factors associated with the quality of sibling relationships in families of youths with spina bifida. A cross-sectional sample of 224 siblings of youths with spina bifida, ages 11-18 years, and parents participated. Siblings completed self-report measures of attitude toward spina bifida, satisfaction with family functioning, peer support, and warmth and conflict in their relationships with brothers and sisters with spina bifida. The parent provided information on spina bifida severity and family demographics. Hierarchical regression analyses supported the overall model in explaining variance in sibling-reported relational warmth (Adjusted R(2) = .29) and conflict (Adjusted R(2) = .17). Satisfaction with family functioning was the only ecological factor consistently associated with warmth and conflict in the sibling relationship. Findings have clinical implications for pathways to support positive sibling interactions in families of youths with spina bifida.