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Forum: Nutrition and Anthropometry
Topic: Input data for HAZ score calculation India DHS VI vs VII
Input data for HAZ score calculation India DHS VI vs VII Sun, 27 November 2022 21:32
 MarkusH Messages: 1Registered: November 2022 Member
Dear team,

I am currently trying to compare DHS VI vs DHS VII stunting stats and am trying to replicate the inputs used to calculate the z-scores, specifically age in days. For DHS VII I am able to do that and the age in days (gen age_days=v008a - b18) corresponds to the age in months b19, however does not match with age in months given by hw1.

At the same time, in DHS VI, only hw1 is available and trying to derive age in days (code see below), I too find large deviations from the age in months data presented by hw1 (not driven by missing data points).

Code for India DHS 2015-16:
gen bdate = mdy(b1, hw16, b2) if hw16 <= 31
gen interviewdate = mdy(v006, v016, v007) if v016 <= 31
gen age_days=interviewdate- bdate if bdate!=. & interviewdate!=.
gen age_months=age_days/30.4375

A) Therefore my first question, how is hw1 calculated in both DHS VI and DHS VII?

And related to this:

B) What are the exact inputs DHS used in the two surveys to generate the WHO z-scores of stunting? I assume hw3 for height, b4 for sex, but what age input was used?

Thanks a lot in advance
Markus
Topic: ANTHROPOMETRIC INDICATORS for Egypt 2008 and 2014
ANTHROPOMETRIC INDICATORS for Egypt 2008 and 2014 Fri, 25 November 2022 15:20
 Alanood Messages: 1Registered: November 2022 Member
Hi

I am a phd studnet, I am doing my first paper.
I am using DHS dataset for egypt for the years 2008 and 2014.

I notice by reading that the ANTHROPOMETRIC INDICATORS in the lastest years used new who reference group
I am trying to find out if HW70 - HW71- HW72 are using the new who reference group or the old one.

In 2014,
. des hw70

Variable Storage Display Value
name type format label Variable label
------------------------------------------------------------ -------------------------------------------------
hw70 int %8.0g HW70 height/age standard deviation (new who)

for 2008

. des hw70

Variable Storage Display Value
name type format label Variable label
------------------------------------------------------------ -------------------------------------------------
hw70 int %8.0g LABBA ht/a standard deviations (according to who)

.

I want to compare the result between 2008 and 2014 and if they are using different reference group i think i need to re-estimate the old year with the new one, But i need a confirmation that which reference group has 2008 dataset used? the old or the new?

thank you
• Attachment: IMG-4790.jpg

[Updated on: Fri, 25 November 2022 15:21]

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Forum: Geographic Data
Topic: GPS data
GPS data Wed, 23 November 2022 06:25
 Endsofanias Messages: 6Registered: November 2022 Member
Dear Sirs,

As I understand, I have to join the KR file to the GPS data via the cluster variable (v001 and v024 in the individual recode file, and DHSCLUST in the GPS data) before importing it into your QGIS to carry out the spatial join and I now know how to import data to and use QGIS, but I do not know how to first join the KR to the GPS data. I identified v001 in my .dta individual recode file and the DHSCLUST in the GPS file but I fail to join them. I have got the GPS data for Ethiopia and the EDHS file, but I do not know how to join the displaced cluster locations to the GIS polygon data of the Regional boundaries. How can merge the regional classification to the individual children in the individual recode file based on the v001, v024, and DHSCLUST variables? If anybody have have an idea, please help me!!

Current Time: Tue Nov 29 12:05:43 Coordinated Universal Time 2022