No announcement yet.
  • Filter
  • Time
  • Show
Clear All
new posts

  • landmark analysis differences between time-periods

    Hello everyone,

    I have a cohort with 1 group (no comparison group).

    I created a landmark analysis with 3 periods of time (0-1 month, 1-12 months and 12-24months post-procedure) with the following syntax:

    stset Followup_month, id(id) failure(V1=1)
    stsplit Landmark, at(1, 12)

    I am pretty happy with the aspect of the sts graph created with the variable Landmark. landmark.tif

    Now I would like to compare the incidence of V1 between the periods in order to demonstrate that there are no statistical differences between them. What would be the proper test?
    I assume that sts test Landmark, logrank doesn't work here.

    Thank you very much.
    Attached Files