TY - JOUR PY - 2019// TI - Evaluating measures of combat deployment for U.S. Army personnel using various sources of administrative data JO - Annals of epidemiology A1 - Otto, Jean L. A1 - Peters, Zach J. A1 - O'Gallagher, Kevin G. A1 - Stewart, Lindsay T. A1 - Campbell, Marjorie S. A1 - Bush, Nigel A1 - Belsher, Brad E. A1 - Evatt, Daniel P. SP - 66 EP - 72 VL - 35 IS - N2 - PURPOSE: This study's purpose is to inform future research decisions about optimal measures for identifying combat deployments. We aim to evaluate four commonly utilized measures available in population-level administrative data to identify combat deployments in recent military operations among active duty Army personnel.

METHODS: We compare these measures in three ways: (1) agreement (assessing the extent to which soldiers were differentially identified as combat deployed via each measure); (2) validity (calculating the sensitivity of each measure against a criterion measure); and (3) corroboration (examining how each measure predicted subsequent incidence of traumatic brain injury and post-traumatic stress disorder).

RESULTS: We found that using personnel records to identify deployments to Iraq, Afghanistan, and/or Kuwait captured over 98% of combat-related deployments identified via self-reported measures. The addition of Kuwait allowed for detection of nearly 100% of battle injuries, improving sensitivity from 94.5% to 99.8%. However, self-reported combat exposure measures showed the largest differential in subsequent incidence of traumatic brain injury and post-traumatic stress disorder. Completeness and accuracy of different combat deployment measures varied significantly.

CONCLUSIONS: Using personnel records to identify deployment to Iraq, Afghanistan, and/or Kuwait was the most valid and comprehensive measure of combat deployment. However, self-reported combat exposure measures were more predictive of combat-related outcomes.

Copyright © 2019 Elsevier Inc. All rights reserved.

Language: en

LA - en SN - 1047-2797 UR - http://dx.doi.org/10.1016/j.annepidem.2019.04.001 ID - ref1 ER -