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Re: Pooling 3 rounds of DHS dataset [message #13524 is a reply to message #13513]

Tue, 14 November 2017 08:30

Bridgette-DHS
Messages: 3199
Registered: February 2013

Senior Member

Following is a response from Senior DHS Stata Specialist, Tom Pullum:

Because these surveys sampled completely different individuals, you cannot link individuals in successive surveys. Therefore you cannot do a merge, as such. Instead you construct a very long file that just adds the files together. In Stata, this is done with an "append" command.

Combining the three surveys into a single file can simplify some data processing if you are looking at trends, for example. However, I strongly recommend against, say, calculating the mean number of children ever born for the combination of the three surveys. Such a mean has no reference point in time and is affected by the arbitrary differences in the sample sizes and is not interpretable.

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[Message index]

		Pooling 3 rounds of DHS dataset By: mianrashid on Sun, 12 November 2017 17:25
		Re: Pooling 3 rounds of DHS dataset By: Bridgette-DHS on Tue, 14 November 2017 08:30

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