Could corticosteroids increase mortality in COVID-19 patients without high oxygen supplementation?

As the coronavirus disease 2019 (COVID-19) pandemic has swept across the world, frantic efforts have been made to identify the effective drugs and use them in the right measure, to counter the severe cytokine storm and systemic hyper-inflammatory response that followed infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in many cases.
Background
This pattern followed the publication of results from the UK RECOVERY trial, which indicated patients with COVID-19 who were on invasive mechanical ventilation (IVM) experienced greater benefit compared to others.

Despite this limitation, many patients have received steroids in the early phase of infection. The current study, available on the preprint medRxiv* server, indicates that this is a less than desirable trend in some subgroups of patients.
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