Hi all,
I am stuck at the following problem: I need to determine if there is a significant difference in Length of stay (LOS) in two groups: decendents and survivors, in different age groups. Can somebody help me with this? In a similar scientific article I found they did use kruskal wallis to calculate this. Somebody some ideas to solve this in stata?

I attached a shot of my data example.

Thanks a lot!

Daniel

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