Conventional oxygen therapy versus cpap as a ceiling of care in ward-based patients with covid-19: a multi-centre cohort evaluation

S52 Figure 1Kaplan-Meier curve comparing overall survival in the two treatment groups (conventional oxygen therapy vs continuous positive airway pressure therapy). The null hypothesis of no survival difference is evaluated with a log-rank test (p = 0.92)[Figure omitted. See PDF]DiscussionThis is, as far as we are aware, the first study comparing conventional oxygen therapy with CPAP in cohorts unaffected by physician selection. No survival difference was found between using oxygen alone or CPAP to treat patients with severe COVID-19 who were nIMV. A high patient-initiated discontinuation rate for CPAP suggests a significant treatment burden. Further reflection is warranted on the continued widespread use of CPAP in this patient group.Please refer to page A189 for declarations of interest related to this abstract.