| Svy, subpop [message #3942] |
Mon, 09 March 2015 10:06  |
bpanda
Messages: 12
Registered: February 2015
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Member |
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Hi,
I am working on a project where I am trying to look for determinants of stunting for 0-23 months children. In this case, should I use the svy, subpop command to restrict the sample to 0-23 months.
So, should I set the regression equation as svy, subpop(023): Logit stunting i.wealth status mom_education etc
Or
Svy: logit stunting i.wealth mom_education etc if child_age<24
Which specification is appropriate?
Any help will be appreciated.
Bibhu
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| Re: Svy, subpop [message #3952 is a reply to message #3942] |
Tue, 10 March 2015 08:34  |
Bridgette-DHS
Messages: 3199
Registered: February 2013
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Senior Member |
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Following is a response from Senior DHS Specialist, Tom Pullum:
Here are the lines you need for a logit regression of stunting on the wealth index for children age 0-23 months.
* logit regression with stunting in months 0-23 as outcome
* use the PR file; KR file is limited to children living with mother
* usually limit to de facto residents, i.e. hv103=1
keep if hv103==1
* hc70 is the WHO haz score, already edited
gen stunting=0
replace stunting=1 if hc70<-2
replace stunting=. if hc70>600
* the cluster id is hv001=hv021
* Stata will normalize the weights; no need to divide by 1000000
* hv022 may be the strata variable but always check
* always a good idea to include one of the singleunit options
svyset hv001 [pweight=hv005], strata(hv022) singleunit(centered)
* it is normal to use hc1 (=hv008-hc18) as age
svy: logit stunting i.hv270 if hc1<24
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