Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio in Antenatal Women With Pre-eclampsia: A Case-Control Study

Abstract

Background Pre-eclampsia (PE) is a disorder characterized by hypertension that may occur in a pregnant woman who was normotensive earlier. One of the major factors responsible consists of the inflammatory system being activated with cytokines and chemokines. The normal range of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) varies from 1 to 3 and 90 to 210, respectively. Therefore, this study was conducted to compare PE patients with normotensive pregnant women in relation to their NLR as well as PLR. Methodology From January 1, 2021, to December 31, 2022, a case-control study was conducted in the department of obstetrics and gynecology at a tertiary care center. Based on the inclusion and exclusion criteria, a total of 140 antenatal women were included and divided into a case group consisting of 70 women with PE and a control group involving 70 normotensive pregnant women. A blood sample for complete blood count testing was collected to determine NLR and PLR. Results The mean NLR in the case group and control group was 3.52 ± 1.05 and 3.22 ± 0.88, respectively, with statistically significant results. Additionally, the PLR in the case group was 98.08 ± 18.27, and in the control group, it was 85.25 ± 12.36, having a significant difference between both the groups along with a significant difference in the case group among the severe and non-severe PE. Conclusion In antenatal women, NLR and PLR increase with PE along with an increase in NLR and PLR. Additionally, with the availability of a complete blood count, detecting PE ability markers such as the NLR and PLR will be a significant advantage for managing PE to prevent adverse outcomes.