Platelet-Lymphocyte and Neutrophil-Lymphocyte Ratio for Prediction of Hospital Outcomes in Patients with Abdominal Trauma

Table 8

Summary of studies on the NLR and PLR in trauma patients.

Author (year)	Study design/sample size	Trauma population	Predictors	Result
Wang et al. (2021) [28]; China	Retrospective ()	Elderly hip fracture patients (>60 y)	PLR	PLR was significantly higher in nonsurvivors than in survivors (), PLR was an independent predictor for one-year all-cause mortality (HR 1.56, 95% CI 1.02-2.41, )
Ke et al. (2021) [30]; Taiwan	Retrospective ()	Adult trauma patients admitted to the ICU	MLR, NLR, PLR	Lower PLR for survivors than for nonsurvivors (124.3 vs. 150.6, ), NLR was comparable
Chae et al. (2021) [35], Korea	Retrospective ()	>19 y who underwent emergency surgery after trauma	NLR, NLPR	NLPR at day 7 may be a superior predictor of late mortality compared with preexisting trauma scores
Jo et al. (2020) [31]; Korea	Retrospective ()	Adult traffic-related trauma admissions	PLR	Lower PLR in nonsurvivors than in survivors (51.3 vs. 124.2, )
Tekin (2019) [32]; Turkey	Retrospective ()	Pediatric trauma admissions	NLR, PLR	NLR and PLR were significantly higher in survivors than in nonsurvivors (NLR, versus , ; PLR, versus , )
Chen et al. (2019) [36]; China	Retrospective ()	Traumatic brain injury	NLR	The day 1 NLR and admission GCS were independently correlated with increased peak NLR. Peak NLR was a predictor for 1-year outcomes
Duchesne et al. (2017); USA [37]	Retrospective ()	Severe hemorrhage patients received MTP	NLR	at day 10 predicts mortality ()
Emektar et al. (2017) [27]; Turkey	Retrospective ()	Elderly hip fracture patients (>60 y)	NLR, PLR	For predicting 1 y mortality, the HR of NLR and PLR were 1.059 (1.022–1.097, ) and 0.997 (0.994–0999, ), respectively
Dilektasli et al. (2016) [38]; USA	Retrospective ()	Trauma patients (>16 y) admitted to the ICU	NLR	independently associated with in-hospital mortality at day 5 (HR 3.758, )
El-Menyar et al. (Qatar)	Retrospective ()	Adult patients with abdominal trauma	NLR, PLR	Initial PLR but not the NLR values after arrival at the trauma center would help early risk stratification and timely management of abdominal trauma patients

MLR: monocyte-to-lymphocyte ratio; NLR: neutrophil-to-lymphocyte ratio; PLR: platelet-to-lymphocyte ratio; NLPR: neutrophil-to-lymphocyte platelet ratio (NLPR). The present study.