Fig. 5From: Safety and efficacy of volume-based feeding in critically ill, mechanically ventilated adults using the ‘Protein & Energy Requirements Fed for Every Critically ill patient every Time’ (PERFECT) protocol: a before-and-after studyKaplan-Meier curves for time to extubation by percentage of prescribed protein delivered: shows 75th centile, days by which 25% of each group extubated and the cumulative probability (discussed as %) of remaining ventilated at day 10Back to article page