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Re: Haemoglobin levels reported for DHS India 1998-1999 [message #24905 is a reply to message #24895] Mon, 01 August 2022 12:08 Go to previous message
Bridgette-DHS is currently offline  Bridgette-DHS
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Registered: February 2013
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Following is a response from DHS Research & Data Analysis Director, Tom Pullum:

The hemoglobin concentration in the DHS files (hc56 for children in the PR files now, or hw56 in the KR files) includes a factor of 10 to get rid of a decimal point. You should divide the numbers in the data files by 10. For example, 100 is 10.0.

In many surveys there are impossibly large or impossibly small values. The anemia variable (now hc57 or hw57) has 4 categories. Both 1 (severe anemia) and 4 (not anemic) are open-ended. Because there don't seem to be standard upper or lower bounds for plausibility, the extreme values are typically just included in the 1 and 4. I suggest that you compare hc56 and hc57 in the most recent India survey to see whether limits of plausibility were used there, and if so, apply them to the 1998-99 survey.

Five years ago we did a methodological report on hemoglobin measurement in DHS surveys, and it may be helpful: .

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