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Calculating HAZ using pre-2006, CDC/WHO growth charts [message #3551]

Tue, 06 January 2015 10:02

shu2013
Messages: 5
Registered: June 2013

Member

I am doing an impact evaluation on a nutrition program in Colombia. For "pre" program time period I only have reports with the prevalence of stunting, wasting etc. that were calculated based on the pre-2006 WHO growth charts. I need to use the anthropometric data from the 2010 Col DHS and convert it to HAZ, but based on the old standard so that I can compare the data points. Is there a program that will allow me to do this?

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Re: Calculating HAZ using pre-2006, CDC/WHO growth charts [message #3560 is a reply to message #3551]

Wed, 07 January 2015 20:29

Reduced-For(u)m
Messages: 292
Registered: March 2013

Senior Member

This appears to be an SAS program that would let you take your second round data and get the z-scores under the old standards, if you have raw height (say, in centimeters) in your newer data.

http://www.cdc.gov/nccdphp/dnpao/growthcharts/resources/sas. htm

Another trick might be to generate a fake dataset with all possible heights, and then use that SAS program above to back out the real heights of the kids in the old data from their z-score, and use that height to calculate new WHO standards for them.

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Re: Calculating HAZ using pre-2006, CDC/WHO growth charts [message #3561 is a reply to message #3560]

Thu, 08 January 2015 07:25

shu2013
Messages: 5
Registered: June 2013

Member

Thank you!

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