Hi experts,

I am working on survival analysis with interval censorship. In our dataset, an object are required to attend a regular checkup and if it fails to showup at a particular checkup, we know that it dies. However we don't know exactly when it dies but rather an interval between the last attended checkup and the recent unattended checkup.

I am aware of stinreg that is specifically designed to handle this kind of dataset but we need to make some distributional assumption.

I am just wonder whether it is possible to use any semi-parametric or non-parametric for the case?

What happen if I use stcox and specify the death at the recent unattended checkup? How stcox deals with interval censorship?

Thanks for your help!