Mortality Risk in Patients with Severe COVID-19 Pneumonia in ICU at Nakhonpathom Hospital: A Prospective Cohort Study

Authors

  • Nutchanart Tomuan M.D., Nakhonpathom Hospital

Keywords:

severe COVID-19 pneumonia, ICU, mortality

Abstract

Background: Coronavirus disease 2019 (COVID-19) has spread around the world. The mortality rate of COVID-19 patients with mechanical ventilation is 49–60%. Therefore, the determination of risk factors for mortality is an important practical point.

Objective: To investigate factors associated with the mortality in patients with severe COVID-19 pneumonia in an intensive care unit (ICU) at Nakhonpathom Hospital

Methods: A prospective cohort study was conducted from 1 May 2021 to 31 December 2021. Patients aged 18 years or older hospitalized with COVID-19 pneumonia were included. For the multivariate analysis, Poisson regression statistics were applied to estimate the adjusted risk ratio.

Results: A total of 176 patients were included. The mortality rate was 55.1%. Common causes of death were hospital acquired infection (44.3%) and respiratory failure (40.2%). Associated factors for the mortality were age >60 years, (ARR 1.63, p = 0.002), non-vaccination against COVID-19 and receiving only one dose of vaccination (ARR 5.16, p=0.002 and ARR 3.40, p = 0.028, respectively), partially dependent functional status (ARR 2.03, p = 0.008), requiring intubation with mechanical ventilation (ARR 4.01, p = 0.030), acute respiratory distress syndrome (ARDS) (ARR 1.49, p = 0.009), sudden cardiac arrest (ARR 1.64, p = 0.016), and pneumothorax (ARR 2.99, p = 0.034).

Conclusion: The mortality rate of patients with severe COVID-19 pneumonia is comparable to international studies. Significant factors associated with mortality include age 60 years or older, not being vaccinated against COVID-19 or only one dose of vaccination, poor functional status, invasive mechanical ventilation, ARDS, sudden cardiac arrest, and pneumothorax

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Published

2023-09-30

How to Cite

1.
Tomuan N. Mortality Risk in Patients with Severe COVID-19 Pneumonia in ICU at Nakhonpathom Hospital: A Prospective Cohort Study. Reg 4-5 Med J [internet]. 2023 Sep. 30 [cited 2025 Apr. 28];42(3):331-47. available from: https://he02.tci-thaijo.org/index.php/reg45/article/view/265676