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Cognitive Moderators of Postconcussive Symptoms in Children with Mild Traumatic Brain Injury

Fay, Taryn Betty
http://rave.ohiolink.edu/etdc/view?acc_num=osu1241322399

Abstract Details

2009, Doctor of Philosophy, Ohio State University, Psychology.
The outcomes of mild traumatic brain injuries (MTBI) in children are largely unknown and controversial. Both parents and children frequently report somatic, cognitive, emotional and behavioral symptoms following MTBI, yet these symptoms often occur in the absence of objective evidence of brain injury such as abnormal neuroimaging findings or cognitive deficits. This prospective, longitudinal study examined whether the relationship between MTBI and postconcussive symptoms (PCS) in children over time is moderated by cognitive ability measured within 2 weeks postinjury. Participants included 186 children with MTBI and a comparison group of 99 children with orthopedic injuries (OI), from 8-15 years of age when injured. Assessments were completed within 2 weeks of injury, and again at 1, 3, and 12 months post-injury. The baseline assessment included standardized cognitive tests, as well as a retrospective rating of pre-injury PCS, by parents only. PCS were also rated by children and parents at baseline, 1, 3, and 12 months postinjury. Principal components analysis of cognitive test data with orthogonal rotation resulted in two factors: verbal cognitive ability and nonverbal cognitive ability. A general hierarchical linear modeling (HLM) analysis was used to examine parent and child rated PCS symptoms longitudinally. The analysis was a group X cognitive ability X time design. Results supported the hypothesis that the presence of postconcussive symptoms after a MTBI is moderated by cognitive ability, and confirmed that cognitive ability is a stronger moderator of PCS symptoms among children who sustain a TBI of greater severity. Children with higher cognitive ability may be protected from the effects of a more severe injury, while those with less cognitive reserve (i.e., lower cognitive ability) demonstrate greater vulnerability to the development of PCS immediately after and up to 3 months postinjury. The results also suggest that there are additional risk factors for the development of PCS, which include greater injury severity, lower cognitive ability, younger age at time of injury and lower socioeconomic background.
Keith Yeates, PhD (Advisor)
Steven Beck, PhD (Committee Member)
Michael Vasey, PhD (Committee Member)
122 p.
Psychology
Mild Traumatic Brain Injury; Children; Postconcussive Symptoms

Recommended Citations

Citations

  • Fay, T. B. (2009). Cognitive Moderators of Postconcussive Symptoms in Children with Mild Traumatic Brain Injury [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1241322399

    APA Style (7th edition)

  • Fay, Taryn. Cognitive Moderators of Postconcussive Symptoms in Children with Mild Traumatic Brain Injury. 2009. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1241322399.

    MLA Style (8th edition)

  • Fay, Taryn. "Cognitive Moderators of Postconcussive Symptoms in Children with Mild Traumatic Brain Injury." Doctoral dissertation, Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1241322399

    Chicago Manual of Style (17th edition)

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© 2009, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.