Magnitude of Septic Shock and its Associated Factors Among Critically Ill COVID-19 Patients at Addis Ababa COVID-19 Care Centers, Ethiopia

Background: The coronavirus disease (COVID-19) pandemic imposed a major public health impact. Septic shock is one of the frequent complications encountered among critically ill COVID-19 patients, leading to poor healthcare outcomes. This study aimed at assessing the magnitude of septic shock and its associated factors.

Methods and materials: An institution-based cross-sectional study was conducted retrospectively on 242 randomly selected COVID-19 patients admitted to three Addis Ababa COVID-19 care centers from September 2020 to October 2021. Septic shock was defined as a Sequential Organ Failure Assessment (SOFA) score ≥2 points and persisting hypotension requiring vasopressors to maintain a mean arterial pressure of ≥65 mmHg despite adequate volume resuscitation. Variables in the bivariate analysis were fitted to multiple regression analysis to eliminate confounders and determine independent risk factors for septic shock. In the multivariable analysis, statistical significance was declared at P < .05.

Results: The prevalence of septic shock was found to be 39.3% (95% confidence interval [CI]: 33.1, 45.7). Advanced age (≥60 years) [AOR = 7.9; 95% CI: 2.3, 26.8], intensive care unit stay above 7 days [AOR = 6.2; 95%CI: 2.1, 18.7], invasive ventilation [AOR = 10; 95% CI: 3, 37], and chronic obstructive pulmonary disease (COPD) [AOR = 18; 95% CI: 7, 45] were significantly associated with increased septic shock among COVID-19 patients. Meanwhile, diabetes [AOR = 0.24; 95% CI: 0.08, 0.71] and cardiovascular diseases [AOR = 0.17; 95% CI: 0.07, 0.44] were associated with a decrease risk of septic shock.

Conclusion: The prevalence of septic shock in critically ill COVID-19 patients was high and a major concern in this study, and it is independently associated with advanced age, prolonged stay in the intensive care unit, and COPD. Based on these findings, healthcare professionals should closely monitor and manage patients with COVID-19 who have a history of COPD, are older, or prolonged intensive care unit (ICU) stays to prevent septic shock and improve patient outcomes.