Quality of life and associated factors in siblings of children with severe motor and intellectual disabilities: A cross-sectional study.

This study examined quality of life and its associated factors in siblings of children with severe motor and intellectual disabilities in Japan. The participants were 789 siblings of children with a disability and their primary caregivers. We used the Kinder Lebensqualität Fragebogen questionnaire to assess the quality of life of siblings. The mean age of the siblings was 12.21 ± 3.07 years, and the mean quality of life score was 69.63 ± 12.55 points, which is higher than that of the general population of children of the same age. It was revealed that the following factors contributed to higher quality of life scores: a closer relationship with the child with a disability, younger age, the primary caregiver's lower care burden, later birth order of siblings (i.e., younger siblings), higher family empowerment, and female gender of siblings. The relationship with the child with a disability had the strongest influence on siblings' quality of life. Our study suggests the need for nursing interventions that focus on the whole family to enhance siblings' quality of life.