ANAM4 TBI Reaction Time-Based Tests have Prognostic Utility for Acute Concussion
Abstract
The Concussion Restoration Care Center has used the Automated Neuropsychological Assessment Metrics version 4 Traumatic Brain Injury (ANAM4 TBI) battery in clinical assessment of concussion. The study's aim is to evaluate the prognostic utility of the ANAM4 TBI. In 165 concussed active-duty personnel (all ultimately returned to duty) seen and tested on the ANAM4 TBI on days 3 and 5 from their injury, Spearman's rho statistics showed that all performance subtests (at day 5) were associated with fewer days return to duty (RTD), while concussion history or age did not. Kruskal- Wallis statistics showed that ANAM4 TBI and loss of consciousness were associated with increased RTD time; ANAM4 TBI reaction time-based subtests, collectively, showed a larger effect size. A survival analysis using a Kaplan-Meier plot showed that the lowest 25% on the reaction time-based subtests had a median RTD time of 19 days, while those in the upper 25% had a median RTD time of approximately 7 days. Results indicate that until validated neurocognitive testing is introduced, the ANAM4 TBI, especially reaction time based tests, has prognostic utility.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2013
- Accession Number
- ADA617599
Entities
People
- D. W. Labrie
- James N. Norris
- Richard Sams
- Thomas Herzig
- Walter Carr
Organizations
- Naval Health Research Center