Factors associated with trauma patients' length of stay at Role 2 facilities in Afghanistan, October 2009 to September 2014

BACKGROUND: Understanding patients' length of stay at far-forward Role 2 surgical units may help to determine support needs, stabilization requirements, predeployment training, and necessity of increased care capability before or during transport to a higher level of care. The objectives of this study were to (1) evaluate the amount of time patients spent at Role 2 and (2) determine the factors associated with trauma patients' length of stay at Role 2. METHODS: We conducted a secondary data analysis of the Joint Trauma System Role 2 Database. Logistic regression was used to determine factors associated with extended length of stay at Role 2. RESULTS: There were 7,912 study patients, and the overall median (interquartile range) amount of time patients spent at Role 2 was 2.5 (1.2-5.5) hours. The adjusted odds ratio (aOR) of extended stay for civilian/other forces and non-US military patients were 1.2 (95% confidence interval [CI], 1.0-1.4) and 1.4 (95% CI, 1.2-1.7) times higher as compared with US military patients, respectively. The aOR of extended stay were higher for patients who received blood transfusions (aOR, 1.4; 95% CI, 1.2-1.6), surgical procedures (aOR, 1.6; 95% CI, 1.4-1.8), or did not use a tourniquet (aOR, 1.2; 95% CI, 1.0-1.5). As compared with those injured by an explosion, the adjusted odds of extended stay were 1.2 (95% CI, 1.0-1.4) times higher for patients injured by another mechanism. The odds of extended stay were lower (aOR, 0.3; 95% CI, 0.2-0.5) for patients who died and higher (aOR, 1.4; 95% CI, 1.2-1.6) for transferred patients as compared with patients who returned to duty. CONCLUSION: In this study, interventions, patient affiliation, discharge status, and injury mechanism were associated with length of stay at Role 2. Our study results will help inform training and current Role 2 logistic and personnel support needs. Copyright (c) 2018 Wolters Kluwer Health, Inc. All rights reserved.