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Identifying Operational and Clinical Predictors of Successful Critical Air Transport Revalidation
Daniel J Brown1, Allyson A Araña2, Richard J Strilka3
1Department of Emergency Medicine, University of Cincinnati, Cincinnati, OH 45267, United States.
Military Medicine
|April 22, 2026
Summary
Sustained critical care practice and recent operational experience, not just mission numbers, predict success in Critical Care Air Transport (CCAT) revalidation. These factors are key to ensuring provider readiness for complex missions.
Area of Science:
- Aerospace Medicine
- Critical Care Medicine
- Military Health Systems
Background:
- The United States Air Force Critical Care Air Transport (CCAT) team provides en route critical care in austere environments.
- Training and validation occur at the CCAT Advanced course, but predictors of revalidation success are unclear.
Purpose of the Study:
- To determine if quantifiable clinical or operational experience predicts CCAT revalidation success.
- To identify factors influencing successful revalidation for CCAT personnel.
Main Methods:
- Retrospective cohort study of 521 revalidation attempts by 334 clinicians (2007-2020).
- Linked CCAT Advanced course records with mission data.
- Used generalized estimating equations and logistic regression to analyze predictors of success.
Main Results:
- Daily critical care practice strongly predicted success (OR: 3.31).
- Recent mission experience (within 540 days) also predicted success (OR: 2.44).
- Neither total mission volume nor course frequency predicted validation status.
Conclusions:
- Operational mission count alone is insufficient for predicting CCAT revalidation success.
- Sustained critical care engagement and recent operational experience are crucial for readiness.
- Force development should prioritize daily critical care access and track clinical sustainment metrics.
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