stata

[Arnolda Pamba]

Which stata command do we run to get the very first time a certain patient showed up for a clinic visit considering he/she has made several clinical visits? given a longitudinal cohort data set.

[Nick Cox]

Data example please. Also, please edit the thread title if you can. "Time of first visit" would be a better title.

Please read and act on https://www.statalist.org/forums/help especially #7 and #12.

I can see no sense in which "multiple inputation" matches your question.