Participant Recruitment Flowchart
MDD
One patient in the esketamine-treated group dropped out at the end of 1 week. They received 0.2 mg/kg esketamine infusion and left the city due to job changes.The 2 groups were generally balanced in terms of baseline demographic and clinical characteristics, except for the proportion of participants with MDD of the first episode, mean number of MDD episodes, and mean MADRS score (