Fig. 4From: Breath-synchronized electrical stimulation of the expiratory muscles in mechanically ventilated patients: a randomized controlled feasibility study and pooled analysisPooled results on clinical endpoints. a Pooled results on extubation success. b Pooled results on ICU length of stay. P values are based on Gray’s test. Cumulative event rates were estimated based on competing risk analysis, with the competing risks of death or withdrawal of ICU treatment (e.g., ventilator support) with the intention of subsequent death. Symbols: o for competing events; + for censored dataBack to article page