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Kaplan-Meier probabilities estimates in the intention-to-treat population over 28 days after enrolment
(A) Probability of treatment failure (intubation or death). (B) Probability of intubation. (C) Probability of survival. (D) Probability of successful weaning of high-flow nasal cannula, with death, intubation, and non-invasive ventilation as competing events. The criteria for weaning were protocolised in each individual trial and are described in the appendix 1 p 7.
