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Re: Applying weights to multilevel hazard analysis using Cox regression [message #23957 is a reply to message #23956]

Fri, 21 January 2022 08:05

Bridgette-DHS
Messages: 3107
Registered: February 2013

Senior Member

Following is a response from DHS Research & Data Analysis Director, Tom Pullum:

Yes, for the cluster ID you can use either v021 and v001. When you get a Stata error message such as "variable wt1_1*wt2_1 not found" it means you have tried to do some algebra that is not allowed within a command. You would just need a line such as "gen wt_1= wt1_1*wt2_1" and then insert "wt_1" where you may have had "wt1_1*wt2_1". However, there may be a bigger issue. There are some instances in Stata in which two options are incompatible with each other, and you don't get an error message telling you that's why the command will not work.

It's very important to include as much of svyset as you can. I would try simplifying svyset, and/or simplifying the cox options, until you get a combination that works. Then proceed with your analysis. You will want to get as close as possible to your ideal combination of svyset and cox, but you may not be able to get all the way there.

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[Message index]

		Applying weights to multilevel hazard analysis using Cox regression By: Ugonna on Wed, 19 January 2022 16:18
		Re: Applying weights to multilevel hazard analysis using Cox regression By: Bridgette-DHS on Thu, 20 January 2022 15:54
		Re: Applying weights to multilevel hazard analysis using Cox regression By: Ugonna on Thu, 20 January 2022 17:19
		Re: Applying weights to multilevel hazard analysis using Cox regression By: Bridgette-DHS on Fri, 21 January 2022 08:05
		Re: Applying weights to multilevel hazard analysis using Cox regression By: Ugonna on Fri, 21 January 2022 15:17
		Re: Applying weights to multilevel hazard analysis using Cox regression By: Bridgette-DHS on Mon, 24 January 2022 08:53
		Re: Applying weights to multilevel hazard analysis using Cox regression By: Ugonna on Mon, 24 January 2022 14:42

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