[Obesity, CKD and gender on the 30-day in-hospital mortality risk in adults with COVID-19]

Rev Med Inst Mex Seguro Soc. 2022 Aug 31;60(5):540-547.
[Article in Spanish]

Abstract

Background: The coronavirus disease 2019 (COVID-19) pandemic is a serious health problem. The Mexican adult population has a high prevalence of obesity and chronic diseases that increase the risk of dying from this disease.

Objective: To identify comorbidities predicting the risk of mortality at 30 days in hospitalized adult subjects with positive laboratory COVID-19 test and to evaluate the interaction between chronic diseases and gender.

Material and methods: A retrospective cohort study was conducted in 2020, in a western region of the Mexican Pacific. Data from 51,135 hospitalized patients with positive COVID-19 test were analyzed and were retrieved from a normative system for the epidemiological surveillance of viral respiratory diseases (SINOLAVE, according to its initials in Spanish). Death within the first 30 days from hospital admission was the main outcome and risk ratios (RR) with 95% confidence intervals (95% CI) were calculated.

Results: The overall mortality rate was 49.6% and most of the comorbidities analyzed were associated with a higher risk of death. There were significant interactions between gender and obesity (p = 0.003) and chronic kidney disease (p = 0.019). The effect of obesity on the risk of a fatal outcome varied by gender: female, RR = 1.04 (95% CI 1.03-1.07); male, RR = 1.07 (95% CI: 1.06-1.09).

Conclusions: A high mortality was observed among the hospitalized patients analyzed and statistically significant factors associated with their risk were identified (gender, obesity, and kidney disease).

Introducción: la pandemia de la enfermedad por coronavirus 2019 (COVID-19) es un problema serio de salud. La población adulta mexicana tiene una alta prevalencia de obesidad y de enfermedades crónicas que incrementan el riesgo de morir por esta enfermedad.

Objetivo: identificar comorbilidades predictoras del riesgo de mortalidad a 30 días en sujetos adultos hospitalizados con COVID-19 demostrado por laboratorio y evaluar la interacción entre enfermedades crónicas y el género del paciente.

Material y métodos: se hizo un estudio de cohorte retrospectivo en el 2020, en una región del occidente del pacífico mexicano. Se analizaron los datos de 51,135 pacientes hospitalizados con COVID-19, los cuales fueron extraídos de un sistema normativo para la vigilancia epidemiológica de enfermedades respiratorias virales (SINOLAVE). La muerte dentro de los primeros 30 días desde la admisión hospitalaria fue el evento principal y fueron estimadas razones de riesgo (RR) con intervalos de confianza del 95% (IC 95%).

Resultados: la mortalidad global fue del 49.6% y la mayoría de las comorbilidades analizadas se asociaron con un mayor riesgo de muerte. Hubo interacciones significativas entre el género y la obesidad (p = 0.003) y la enfermedad renal crónica (p = 0.019). El efecto de la obesidad sobre el riesgo de un desenlace fatal varió en función del género: mujeres, RR = 1.04 (IC 95% 1.03-1.07); hombres, RR = 1.07 (IC 95% 1.06-1.09).

Conclusiones: se observó una alta mortalidad entre los pacientes hospitalizados analizados y se identificaron factores asociados a su riesgo (género, obesidad y enfermedad renal).

Keywords: COVID-19; Hospital Mortality; Inpatients; Obesity; Renal Insufficiency, Chronic.

MeSH terms

  • Adult
  • COVID-19* / epidemiology
  • Comorbidity
  • Female
  • Hospital Mortality
  • Hospitalization
  • Humans
  • Male
  • Obesity / complications
  • Obesity / epidemiology
  • Renal Insufficiency, Chronic* / complications
  • Renal Insufficiency, Chronic* / epidemiology
  • Retrospective Studies
  • Risk Factors
  • SARS-CoV-2