Using the Multidimensional Model of Acceptance to Investigate How Different Facets of Acceptance are Related to Quality of Life Following Spinal Cord Injury.

Objective: To determine how different facets of acceptance are related to quality of life (QoL) following spinal cord injury, after controlling for sociodemographic factors, injury-related variables, depression, and anxiety.

Participants: Adults with spinal cord injury.

Methods: Questionnaires were completed via research electronic data capture (REDCap). Three separate hierarchical multivariate linear regression analyses were performed, with physical QoL, psychological QoL, and global QoL as outcomes. Sex, age, time since injury, depression, anxiety, and 4 facets of acceptance (i.e. "accepting reality", "valuechange", "letting go of control" and "behavioural engagement") were independent variables.

Results: Of the 686 eligible participants, 453 responded (66.0%). The sample included 303 men (66.9%), mean (standard deviation; SD) age 56.6 (15.0) years and mean (standard deviation) time since injury 14.6 (11.4) years. The final regression models (n = 376) explained 46% of global QoL, 47% of psychological QoL and 31% of physical QoL. The 4 facets of acceptance significantly increased the amount of variance explained by 6% for psychological QoL, 8% for physical QoL and 14% for global QoL. The facets "value-change" and "behavioural engagement" made significant contributions to all domains of QoL, while "letting go of control" only contributed to global QoL, and "accepting reality" only contributed to psychological QoL.

Conclusion: Acceptance may support higher QoL in more ways than simply reducing psychological distress, and could be an important process to facilitate in rehabilitation after spinal cord injury.