Postconcussive symptoms in OEF–OIF veterans: Factor structure and impact of posttraumatic stress

Jared F. Benge, Nicholas J. Pastorek, G. Matthew Thornton
2009 Rehabilitation Psychology  
Purpose: Veterans with a history of mild traumatic brain injury (mTBI) are reporting postconcussive symptoms (PCSx) in addition to experiencing postdeployment physical and emotional comorbidities. The Veterans Health Administration has mandated specialized evaluation and treatment for veterans with a history of mTBI and has suggested widespread use of the Neurobehavioral Symptom Inventory (NSI) as a measure of PCSx. This study evaluated the NSI's factor structure and assessed the impact of
more » ... the impact of posttraumatic stress (PTS) on the scale at the item and factor levels. Research Method: Five hundred twenty-nine charts of returning veterans who screened positive for traumatic brain injury were reviewed, and 345 who met criteria for mTBI were included in the study. Results: Results of factor analysis on the NSI revealed a difficult-to-interpret factor structure that was inconsistent with the results of civilian studies. PTS explained 5%-38% of the variance in individual PCSx, and after controlling for this variance, the factor structure more closely paralleled findings from the civilian literature. Conclusion: PTS is an important variable to account for when evaluating PCSx in veterans. Research and clinical implications for the measurement and interpretation of self-reported PCSx are discussed. Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. Same as Report (SAR) 18. NUMBER OF PAGES 9 19a. NAME OF RESPONSIBLE PERSON a. REPORT unclassified b. ABSTRACT unclassified c. THIS PAGE unclassified Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18
doi:10.1037/a0016736 pmid:19702425 fatcat:n7oxdicosbdvfkddu6gesnqx4m