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Table 1 Glossary of terms used in the current report, based on the CONSORT extension for cluster randomized trials [11]

From: Statistical analysis plan for the Stepped-wedge Cluster Randomized trial of Electronic Early Notification of sepsis in hospitalized ward patients (SCREEN)

Term

Definitions [11]

Applicability to SCREEN trial

Cluster

The unit of randomization

Hospital ward

Control condition

The comparator treatment

Masked alert

Duration of period

Time (e.g., months) between each step

10 periods, each is 2 months

Intervention condition

The treatment under evaluation

 Active alert

Sequence

A sequence of codes defining the order of implementation of the treatment conditions for each cluster. More than one cluster can be allocated to each sequence

9 sequences, with 5 clusters in each sequence

Step

A planned point at which a cluster or a group of clusters crosses from control to intervention

The period between two steps is 2 months