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Figure 4 shows the number of cases collected with REDCap tool compared to surgical logbook (‘non observed’). Black dotted line between quarters 1 and 2 in 2014 represents transition from paper form of REDCap to electronic, while red dotted line between quarters 1 and 2 in 2015 indicates the period when a research assistant dedicated to the collection of 7-day mortality data was hired.
Abbreviations: Q – quarter, REDCap – Research Electronic Data Capture.
