The number at risk for the enroll:progression transition is the number at the foot of the arrow; the number at risk for the death state is the sum of the number in the enroll and progression box. The first is probably the right label for a cumulative hazard curve. Is the second the one we want for the Prob("death") curve? But then you can't have just one n.risk row for a plot with multiple groups.
For multi-state curves, there are advocates for both "stacked" and non stacked forms.
Thank you @therneau for the note!
The number at risk for the enroll:progression transition is the number at the foot of the arrow; the number at risk for the death state is the sum of the number in the enroll and progression box. The first is probably the right label for a cumulative hazard curve. Is the second the one we want for the Prob("death") curve? But then you can't have just one n.risk row for a plot with multiple groups.