- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04434157
Association of the Neutrophil/Lymphocyte Ratio With Clinical Complications and Mortality in COVID-19 Patients
Association of the Neutrophil/Lymphocyte Ratio and Lymphocyte /Platelet Ratio With Clinical Complications and Mortality in COVID-19 Patients
There is little information about the clinical characteristics and risk factors of Covid-19 in Latin American countries considering the ethnic differences and the high prevalence of obesity and cardiometabolic diseases. The aim of the study was to evaluate the association between laboratory tests and the risk of complications in SARS-CoV-2 infection and to determine their mortality risk factors in a sample of the Mexican population.
A retrospective cross-sectional study of the routinely collected data was performed in the Hospital Regional de Alta Especialidad de Ixtapaluca (HRAEI), State of Mexico. Adult patients (aged ≥18 years) with positive RT-PCR for SARS-CoV-2 and oxygen support that were admitted between March 28 and May 5, 2020, were included
Study Overview
Status
Conditions
Detailed Description
Data collection Data was collected deidentified admission from adult patients, with oxygen therapy. Data were extracted from clinical medical records and the electronic database of daily laboratory test results. Also, incomplete clinical records were included. The number of cases in the area during the study period determined the sample size, no formal hypotheses being implemented. All patients who met the inclusion criteria were included.
Study variables Demographic variables (sex and age), chronic medical histories (hypertension, diabetes and cancer), laboratory plasma, and serum-based biomarkers, as well as the mortality, mechanical ventilation, and length of stay, were considered. Leukocytosis was considered as a leucocyte count above 10 x 103/mcL, a cut point of INL> 10, d- dimer 500 U/L, DHL> 500U/L, low count of lymphocytes < 0·5103/mcL as risk factors exposure to death and mechanical ventilation.
A new variable was create combining the data of neutrophil count (ANC) and lymphocyte count (ALC) to obtain the neutrophil-to-lymphocyte ratio (NLR) (calculated dividing the ANC by the ALC).
Outcomes The hypothesis was formulated before the statistical analysis. Our primary outcomes were to 1) To describe the clinical characteristics of the Mexican population with SARS-CoV-2 infection, and 2) To determine the mortality risk factors in Covid-19.
Secondary outcomes included 1) To identify the chronic diseases related to Covid-19 in Mexican population and 2) To evaluate the differences in hematic and biochemical parameters between survivors and no survivors.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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State Of Mexico
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Ixtapaluca, State Of Mexico, Mexico, 56530
- Hospital Regional de Alta Especialidad de Ixtapaluca
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Adult patients (aged ≥18 years)
- Clinical (Positive RT-PCR for SARS-CoV-2 test) and radiological diagnosis of pulmonary infection by COVID-19
- Diagnosis of acute respiratory distress syndrome clinical panel in accordance with Berlin 2012 criteria
- Need of non-invasive ventilation (NIV or CPAP) or invasive ventilation (intubation)
Exclusion Criteria:
- Previous diagnosis of severe liver or kidney failure.
- Patients with Human Immunodeficiency Virus (HIV) infection.
- Patients with previous hematological diseases (Leukemia) that condition alterations in blood counts.
- Consumption of treatments with any type of immunosuppressants prior to admission that conditions low lymphocytes.
- Patients with a diagnosis of active or non-active cancer.
- Absence of a clinical record for monitoring the data.
- Pregnancy.
- Patients referred from other institutions for their medical care. Clinical records of patients who requested their voluntary discharge Clinical records that do not include information of the course of COVID-19 infection
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clinical complications and Mortality
Time Frame: 10 days
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To main aim of the study is to evaluate clinical complicatios and mortality in mexican Covid-19 patients
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10 days
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Neutrophil-Lymphocyte and Lymphocyte-Platelet ratio
Time Frame: 10 days
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To evaluate the association of the hematological ratios with the clinical complicatios and mortality in covid-19 patinets
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10 days
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Hematic and biochemical parameters
Time Frame: 10 days
|
To evaluate the differences in hematic and biochemical parameters between survivors and no survivors
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10 days
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Chronic diseases
Time Frame: 10 days
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To identify the chronic diseases in the patientss´medical records associated with the pulmonary complications
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10 days
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Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NR-09-2020
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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