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Kaplan-Meier survival curves of the time to primary outcome (treatment failure) in the MPP and placebo groups. The time to primary outcome of the study (treatment failure) was analyzed with the Kaplan-Meier estimator and compared between the MPP and control groups using the log-rank Mantel-Cox test (1.0 [1.0–3.2] days in the MPP group vs. 1.5 [0.7– 2.0] days in the placebo group, p = 0.74). MPP, methylprednisolone pulses.
