The prognostic accuracy of neutrophillymphocyte ratio in COVID-19 patients
Emergency Medicine Journal
; 39(3):252-253, 2022.
Article
in English
| EMBASE | ID: covidwho-1759393
ABSTRACT
Aims/Objectives/Background COVID-19 is a newly emerging pandemic viral disease. Multiple management guidelines were introduced;nevertheless, their efficacy is still under debate. Thus, the presences of prognostic factors are essential for predicting which patients will need more invasive treatments. The study aims to investigate the prognostic accuracy of neutrophil-lymphocyte ratio in COVID-19 infection. Methods/Design This is a prospective study done in Al-Ain Hospital in the United Arab Emirates. All the Covid-19 patients presenting to the hospital were enrolled over one month from 20/3 to 20/4/2020. We gathered information about their age, sex, mode of transmission and calculated their Neutrophils/Lymphocytes ratio (NLR) from the first complete blood picture on admission. We divided the patients into two groups those aged 50 years and above and those aged less than 50 years. We chose the best NLR cutoff value based on the Youden index and receiver operating characteristic (ROC) curve analysis. The target endpoint was the presence or absence of intensive care unit (ICU) admission. Results/Conclusions The study revealed that 48 patients (14%) needed ICU admission, while 296 patients (86%) were admitted to a ward or quarantine facilities. When the patient's age was > 50, and NLR was ≥ 3.10, it showed a sensitivity of 95.24% and a specificity of 92.86% for predicting the need for ICU admission. When NLR was ≥ 4.21, and the patient's age was < 50, the sensitivity and specificity were 70.3% and 93.7%, respectively. NLR proved to be highly specific and sensitive in helping to identify patients who need more invasive care among people over 50 years of age with COVID-19. Additionally, it can be used as a ruling out gadget for low-risk patients among people under 50 years old.
adult; conference abstract; controlled study; coronavirus disease 2019; diagnostic test accuracy study; female; human; human cell; intensive care unit; invasive procedure; low risk patient; lymphocyte; major clinical study; male; middle aged; neutrophil; neutrophil lymphocyte ratio; pandemic; practice guideline; prospective study; quarantine; receiver operating characteristic; risk assessment; sensitivity and specificity; United Arab Emirates; Youden index
Full text:
Available
Collection:
Databases of international organizations
Database:
EMBASE
Type of study:
Prognostic study
Language:
English
Journal:
Emergency Medicine Journal
Year:
2022
Document Type:
Article
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