Hi all!

I am currently working on my University dissertation and would greatly appreciate any help, as I am completely new to Stata and my University doesn't have any resources on it. I am trying to run a regression with several studies, looking at age of participants (x axis) and the concentration of a specific biomarker (y axis). I think the appropriate analysis to conduct in order to achieve a plot would be a non-linear fixed effects regression.

Would anyone please be able to advise me on whether this would be the correct analysis, and if so, whether this is achievable on Stata 15. I have been scouring the internet for help and have struggled to find anything, so any help (either on this forum or private messaged) would be greatly appreciated!

Many thanks