Acute Inflammatory Mediators in Young Adult Patients with COVID-19 in Mexico

Area of Science:

• Infectious Diseases
• Immunology
• Public Health

Background:

• Young adults (18-40) are key in COVID-19 transmission, yet often considered low-risk due to a low case fatality rate (CFR).
• Limited studies exist on inflammatory and coagulation biomarkers in this demographic, despite their potential clinical utility in preventing severe outcomes.
• Understanding these biomarkers is crucial for managing COVID-19 in active populations.

Purpose of the Study:

• To investigate inflammation, coagulopathy, and severity outcomes in young adult COVID-19 patients.
• To identify specific biomarkers associated with increased COVID-19 severity in this age group.
• To assess the prevalence of COVID-19-associated coagulopathy (CAC) and its risk factors in young adults.

Main Methods:

• Retrospective cohort study of 359 COVID-19-confirmed young adults in Hermosillo, Mexico.
• Analysis of blood samples for neutrophil/lymphocyte ratio (NLR), neutrophil/monocyte ratio (NMR), lymphocyte/monocyte ratio (LMR), platelet/lymphocyte ratio (PLR), and C-reactive protein (C-RP).
• Inclusion of epidemiological data and comorbidities to compare with COVID-19 severity status (ambulatory, hospitalized, death).

Main Results:

• Increased NMR, LMR, and C-RP levels were significantly associated with more severe COVID-19 outcomes.
• Obesity, arterial hypertension, and type-2 diabetes mellitus (T2DM) were linked to increased COVID-19 severity.
• 9.1% of young adults had COVID-19-associated coagulopathy (CAC), with 30.3% at risk of developing CAC.

Conclusions:

• Biomarkers such as NMR, LMR, and C-RP can serve as independent indicators of enhanced inflammation and prognosis in young adult COVID-19 patients.
• Comorbidities like obesity, hypertension, and T2DM are critical factors influencing COVID-19 severity in this population.
• The presence of CAC and its risk factors warrants attention for improved management strategies in young adults.