Enrollment and Follow-Up Monitoring Plots

Enrollment over time is one of the most common clinical study monitoring plots. A cumulative enrollment curve helps investigators see whether recruitment is on track. The following code creates a cumulative enrollment plot: If enrollment should be reviewed by site, the plot can use color: This chart may become crowded if many sites are included. For many sites, faceting may be better:

Follow-up monitoring can use window status: This chart supports action because it shows where visits are overdue, too early, too late, or within window. It should be generated from a clearly defined window rule.