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Status:Closed    Asked:Mar 07, 2015 - 10:56 AM

For the Variable Jntmo(hip pain in in last 30 days), why are 70% of the observations NIU for years 2002-2013?

 
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Tim_Moreland

Staff

Only sample adults were asked the JNTMO question. A sample adult is the one adult (age 18+) per family who was selected at random to answer additional health-related questions. Thus, any person that does not have ASTATFLG="1:Sample adult, has record" is coded as JNTMO="0: NIU".


Keep in mind that analyses using at least one variable that was answered by only sample adults should use SAMPWEIGHT instead of PERWEIGHT when weighting the data.

Hope this helps.

 

Mar 09, 2015 - 03:21 PM

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