Factors influencing the length of stay in the moroccan intensive care unit in patients surviving critical COVID-19 infection.

Introduction: our objective is to determine the factors that influence the length of hospitalization of patients admitted to an intensive care unit. Methods: We have conducted a mono-centric retrospective cohort of 417 patients admitted in intensive care unit for a critical infection by COVID-19, for this purpose we have realized an analytical study using the linear regression model. Results: In our study, the average length of hospitalization for a critical infection with COVID-19 is 6 days (SD = 7Days), regarding the factors that influence the length of hospitalization, the length of time between the consultation and the onset of symptoms higher thann 8 days affects the length of hospitalization (coefficient = 1.2 days; CI = 0.769; 2.102 and pValue = 0.009), the presence of obesity which also affects the length of hospitalization (Coefficient = 1.6 days CI ((0.009; 3.265), and pValue = 0.049). During hospitalization, the use of mechanical ventilation, the use of tocilizumab, having a billateral nosocomial pneumonia are all factors that impact the length of hospitalization. Conclusion: It is recommended to emphasize the importance of early consultation after the onset of respiratory symptoms in the patients who are admitted to the intensive care unit in order to improve the length of their stay.