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KMID : 1144420240390010146
Acute and Critical Care
2024 Volume.39 No. 1 p.146 ~ p.154
Role of platelet-to-lymphocyte ratio at the time of arrival to the emergency room as a predictor of short-term mortality in trauma patients with severe trauma team activation
Kim Jae-Kwang

Sun Kyung-Hoon
Abstract
Background: Platelet-to-Lymphocyte ratio (PLR) has been studied as a prognostic factor for various diseases and traumas. This study examined the utility of PLR as a tool for predicting 30-day mortality in patients experiencing severe trauma.

Methods: This study included 139 patients who experienced trauma and fulfilled ¡Ã1 criteria for activation of the hospital¡¯s severe trauma team. Patients were divided into non-survivor and survivor groups. Mean PLR values were compared between the groups, the optimal PLR cut-off value was determined, and mortality and survival analyses were performed. Statistical analyses were performed using SPSS ver. 26.0. The threshold of statistical significance was P<0.05.

Results: There was a significant difference in mean (¡¾standard deviation) PLR between the non-survivor (n=36) and survivor (n=103) groups (53.4¡¾30.1 vs. 89.9¡¾53.3, respectively; P<0.001). Receiver operating characteristic (ROC) curve analysis revealed an optimal PLR cut-off of 65.35 (sensitivity, 0.621; specificity, 0.694, respectively; area under the ROC curve, 0.742), and Kaplan-Meier survival analysis revealed a significant difference in mortality rate between the two groups.

Conclusions: PLR can be calculated quickly and easily from a routine complete blood count, which is often performed in the emergency department for individuals who experience trauma. The PLR is useful for predicting 30-day mortality in trauma patients with severe trauma team activation.
KEYWORD
blood platelets, lymphocytes, mortality, multiple trauma
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