Practice Variation in Spontaneous Breathing Trial Performance and Reporting

Figure 1

Flow diagram of selection of patients. The diagram shows how the dataset was reduced to ensure only spontaneous breathing trials (SBTs) with adequate case report form (CRF) data were included, and only sites with >10 SBTs were compared for analysis. It includes a breakdown of number of patients and SBTs across sites. All SBTs from all patients enrolled in the Weaning and Variability Evaluation study were originally included.