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Predictors of Participation Enfranchisement After Spinal Cord Injury: The Mediating Role of Depression and Moderating Role of Demographic and Injury Characteristics

Published:February 21, 2014DOI:https://doi.org/10.1016/j.apmr.2014.01.027

      Abstract

      Objectives

      (1) To examine the mediating effects of depressive symptoms on the relations between employment, grief, depression treatment, and participation enfranchisement after spinal cord injury (SCI); and (2) to examine the moderating role of demographic and injury characteristics, including sex, race, marital status, education, and injury level, and completeness on these relations.

      Design

      Cross-sectional survey as part of the Project to Improve Symptoms and Mood after SCI (PRISMS).

      Setting

      Rehabilitation facilities.

      Participants

      Persons with SCI (N=522; average age, 42y; 76% men; 64% white; 64% completed at least a high school education) enrolled from 2007 to 2011.

      Interventions

      Not applicable.

      Main Outcome Measure

      Participation enfranchisement.

      Results

      The final model fit the data relatively well (comparative fix index=.939; Tucker-Lewis Index=.894; root mean square error of approximation=.066; 90% confidence interval, .043–.089), explaining 32% of the variance in participation enfranchisement. Enfranchisement was positively related to employment and negatively related to depression. Grieving the loss of a loved one and the use of an antidepressant or psychotherapy were related to participation enfranchisement; these relations were mediated by depressive symptoms. Multigroup analyses supported the model's invariance across sex, marital status, severity of injury, and level of injury.

      Conclusions

      Depression appears to mediate the influence of employment, grief, and depression treatments on participation enfranchisement after SCI. These relations are applicable regardless of sex, marital status, and injury completeness and level. These findings highlight efforts to improve the detection and treatment of depression in SCI rehabilitation programs that may enhance participation.

      Keywords

      List of abbreviations:

      CFI (comparative fix index), CI (confidence interval), ICF (International Classification of Functioning, Disability and Health), MDD (major depressive disorder), ML (maximum likelihood), PHQ-9 (Patient Health Questionnaire-9), RMSEA (root mean square error of approximation), SCI (spinal cord injury), SEM (structural equation model), TLI (Tucker-Lewis Index)
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