What's the formula for MRW in sashelp.heart datasets

[Chai2]

I'm looking for the formula used to calculate MRW in 

sashelp.heart datasets

anyone knows please reply to this post Thank you very much!!

[FreelanceReinh · Accepted solution]

Hello @Chai2 and welcome to the SAS Support Communities!

I've just found the 2016 blog post "Examine patterns of missing data in SAS" by Rick Wicklin where the term "Metropolitan Relative Weight" (which is what MRW stands for) is linked to a scientific paper. The definition of MRW starts at the bottom of the first page of that paper.

[Chai2]

Thank you very much, it helps.