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Original Articles

Predictive values of combined platelet count, neutrophil-lymphocyte ratio, and platelet-lymphocyte ratio in preeclampsia

ORCID Icon, , , &
Pages 1011-1017 | Published online: 20 Dec 2021
 

Abstract

We aimed to determine predictive values of the platelet count (PC), Neutrophil lymphocyte ratio (NLR), and platelet lymphocyte ratio (PLR) in preeclampsia independently and in combination. One hundred and eighty pregnant women (96 normal pregnancies, 84 preeclampsia) were included in this study. ROC evaluated the predictive value of PC, NLR, and PLR. AUC, Youden’s index, and optimal cut-off thresholds were calculated independently and in combination. The PC significantly decreased in preeclampsia (p < .0001, 95% CI −60.6437 to −24.5963) with cut-off level ≤250.3, whereas NLR was significantly increased in preeclampsia (5.28 ± 4.77, p = .0001, 95% CI 0.9813–2.9187) with cut-off level >4.47. In preeclampsia, PLR significantly decreased (94.32 ± 30.81, p = .0001, 95% CI 58.2583 to −29.6817) with cut-off level ≤100.48. Combined indices of PC, NLR, and PLR were significantly more predictive of preeclampsia when compared to independent indices (AUC 0.86, p < .001, 95% CI 0.801–0.907, sensitivity 75.0, and specificity 81.2) compared to independent indices.

    IMPACT STATEMENT

  • What is already known on this subject? Many studies have tried to find out a simple screening test that would predict the risk of developing preeclampsia. Platelet count, Neutrophil lymphocyte ratio, and platelet lymphocyte ratio have been investigated independently to predict preeclampsia. These parameters are simple, cheap, and are usually available for all patients. Unfortunately, there are no universal cut-off levels accepted.

  • What do the results of this study add? The use of a combination of platelet count, neutrophil-lymphocyte ratio, and platelet lymphocyte ratio is a simple and effective test to predict preeclampsia. The use of a scoring system involving cut-off levels of platelet count, neutrophil-lymphocyte ratio, and platelet lymphocyte ratio is a highly predictive index for developing preeclampsia.

  • What are the implications of these findings for clinical practice and/or further research? In this study, we aimed to highlight the importance of using a combination of platelet count, neutrophil-lymphocyte ratio, and platelet lymphocyte ratio as a scoring index instead of using these parameters independently. More studies are needed to reach a universal cut-off level for each parameter.

Disclosure statement

All authors have no conflicts of interest to declare.

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