How to suppress categorical outputs in proportional hazard model

Hi everyone,

I have a question about how to output part of the regression results for main IVs in the cox proportional hazard model.

For instance, my code is something like : stcox age ndrugtx treat site

In the regression result, I only want to keep the result for age while suppressing coefficients for other variables.

I wonder if anyone knows how to achieve this in Stata?

Thanks