Hello all,

I am in the process of analyzing some data from the National Readmissions Database (NRD). I have used the svyset command on other HCUP databases including NIS and NEDS with no issue. However, for some reason I start using NRD and it appears the svyset function is no longer working.

Here is what is going on. Every time I am trying to define my svyset using the code svyset HOSP_NRD [pweight=DISCWT], strata (NRD_STRATUM) I then receive the error code command svyset_8 is unrecognized. All of the variables (weight, strata) are correct, it seems that svyset is for some reason no longer recognized. Even more concerningly, I just tried to clear and re-run my survey set designation on the prior NIS and NEDS data that had worked in the past, and now the svyset command is no longer working there either.

I have tried update STATA, restarting my computer, all to no avail. Outside of de-installing and re-installing STATA, does anyone have any other advice?