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Re: Primary sampling units (PSU) [message #3049 is a reply to message #3047] Tue, 07 October 2014 11:39 Go to previous messageGo to previous message
Liz-DHS
Messages: 1516
Registered: February 2013
Senior Member
Here is another response from one of our experts, Fred Arnold:
If you're using data for only a single state, you can use just the PSU number, but if you're using data across states or for the whole country you need to combine the state and PSU codes in order to obtain a unique code for each PSU. For example, every state will have a PSU=001 so that PSU code is not unique. If you add the PSU code at the end of the state code you will have a unique variable. For example, PSU 001 in state 22 will have the unique PSU number of 22001. PSU 001 in state 24 will have the unique PSU number of 24001. One way to generate the unique codes is to create a new variable, which =1,000*state code + PSU code.

Thank you for your post.

 
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