Recommendation:We suggest the administration of steroids (equivalent to methylprednisolone 1-2mg/kg/ day) to adult patients with ARDS. (GRADE 2B,strength of recommendation “ weak recommendation” / Quality of evidence “moderate”)

●Supplementary conditions: There is one RCT to assess the effect of hydrocortisone (200mg/day) and 3 RCTs to assess the effect of methylprednisolone(1-2mg/kg/day). Therefore, we use “equivalent to methylprednisolone 1-2mg/kg/day” for the dose of steroids.