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. 2022;82(5):689-694.

[Lymphocyte-to-C-reactive protein ratio in COVID-19: an unexplored tool]

[Article in Spanish]
Affiliations
  • PMID: 36220025
Free article

[Lymphocyte-to-C-reactive protein ratio in COVID-19: an unexplored tool]

[Article in Spanish]
Ignacio J Gandino et al. Medicina (B Aires). 2022.
Free article

Abstract

Background: COVID-19 develops severe inflammatory responses that can lead to death. It is essential in a pandemic to have accessible instruments to estimate the prognosis of the disease. The lymphocyte-to-C-reactive protein ratio (LCR) is a predictive biomarker studied in oncology, which could have some advantages in COVID-19 patients in the early stages of the disease. Our objective was to estimate the risk of LCR < 100 and mortality in hospitalized patients with COVID-19.

Methods: hospitalized patients with COVID-19 seen between March to October 2020 were included. The patients were grouped according to LCR < 100 and LCR > 100. A Cox regression model was performed to estimate the association between LCR < 100 and mortality.

Results: we included 730 patients with COVID-19. The mean age at diagnosis was 49.9 years (SD 16.8) and 401 (55%) were men. Cox regression model showed an association between LCR <100 and mortality (HR 6.2; 95% CI 1.6 to 23.5; p 0.008), adjusting by age. severe pneumonia, intensive care requirements, and comorbidities.

Conclusion: LPCR <100 in the initial assessment of hospitalized patients with COVID-19 suggests a higher risk of mortality.

Introducción: El COVID-19 genera respuestas inflamatorias graves que pueden terminar en la muerte. En pandemia resulta fundamental tener instrumentos de f ácil acceso que estimen su evolución. El índice linfocito proteína C reactiva (LPCR) es un marcador pronóstico estudiado en patología oncológica que podría mostrar ventajas en la etapa precoz de la enfermedad por COVID-19. Objetivo: estimar los niveles de LPCR < 100 y su riesgo de mortalidad en pacientes internados con COVID-19. Métodos: Se incluyeron pacientes con COVID 19 que ingresaron a la sala de internación general desde marzo hasta octubre de 2020. Se realizó un modelo de regresión de Cox para estimar la relación entre el LPCR < 100 y mortalidad. Resultados: Se incluyeron 730 pacientes. La edad media de presentación fue 49.9 años (DE 16.8) y 401 (55%) fueron hombres. La mediana de días de internación fue 8 (RIC 6). El modelo de regresión de Cox evidenció asociación entre LPCR <100 y mortalidad (HR 6.2; IC95% 1.6 a 23.5; p 0.008) ajustado por edad, neumonía grave, pases a terapia intensiva, hipertensión arterial, y comorbilidades. Discusión: El LPCR <100 en la evaluación inicial de los pacientes que se internan con COVID-19 podría sugerir mayor riesgo de mortalidad.

Keywords: COVID-19; lymphocyte-to-C-reactive protein ratio; mortality.

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