Table 1.

List of available studies that determined the positive effects of CSs on COVID-19 patients

Types of study	Country of study	Sample Size	Outcome	Reference
Meta-analysis	China, Europe, North America, South America, Multi-continental	20,197	Lower mortality rate Less mechanical ventilation requirement Delayed viral clearance Increased secondary Infection	[37]
Retrospective study	France	70	Lower risk of orotracheal intubation and ventilation in ICU Prevents worsening of COVID-19 severe pneumonia	[38]
Clinical analysis	China	46	Improved hypoxia and fever Shortened disease course	[40]
Meta-analysis	Austria, Spain, Brazil, UK, US, China, Canada, New-Zealand, Denmark, France, European Union,	1703	Lower mortality rate	[41]