Correlation of maternal neutrophil to lymphocyte ratio with fetal birth weight in preeclampsia
DOI:
https://doi.org/10.48129/kjs.v48i1.8769Keywords:
Preeclampsia, Neutrophil lymphocyte ratio, fetal birth weightAbstract
Preeclampsia (PE) is a generalized inflammatory disorder complicating gestation, with most of cases developing in the third trimester. To evaluate the neutrophil to lymphocyte ratio (NLR) in diagnosed cases of preeclampsia and determine its correlation with fetal birth weight, a cross sectional analytical study was performed in Shaikh Zayed Medical Complex and Jinnah Hospital, Lahore. The participants included 60 cases of preeclampsia and 60 normotensive controls in third trimester of pregnancy. All the participants were in the age group of 20-40 years and BMI of 18-25.Total and differential leukocyte count was checked by automated hemoanalyzer and neutrophil lymphocyte ratio was calculated. Fetal birth weight was recorded immediately after birth. Statistical analysis was performed by SPSS (version 20). The p value of <0.05 was considered significant. NLR was significantly high (p-value < 0.001) in the preeclamptic group with a median value of 2.64(2.0-3.8) as compared to 1.87(1.7-2.0) in the healthy group. The fetal birth weight was significantly low (p-value < 0.001) in the pregnancies complicated with preeclampsia. High NLR was negatively correlated with fetal birth weight in preeclampsia (p-value < 0.01). On logistic regression significant association of high NLR with low fetal birth weight was found after controlling for the confounder gestational age, with an Odds ratio (OR) of 8.28 ( 95% confidence Interval 2.84-24.17). The area under the Receiver operating characteristic (ROC) curve for NLR was 0.8. The optimum cutoff value of NLR was 2.3 with 79% sensitivity and76% specificity. High maternal NLR in the third trimester in preeclampsia negatively correlates with fetal birth weight and is a simple promising biomarker to predict low fetal birth weight.
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