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Home » Topics » Nutrition and Anthropometry » Age at first first birth (Mother's age at first birth in KR file)
Age at first first birth [message #28469] Fri, 12 January 2024 12:38 Go to next message
Mukesh is currently offline  Mukesh
Messages: 13
Registered: March 2019

I am using KR file NFHS-4 & 5.
Variable v212 is to respondent's age at first birth.

My query is, is the age in a year the exact year or during that year?

I want keep a sample of those who gave birth before the completion of 18 years.

so syntax should be
keep if v212<18 

keep if v212<=18

Thank you!
Re: Age at first first birth [message #28496 is a reply to message #28469] Fri, 19 January 2024 09:09 Go to previous message
Janet-DHS is currently offline  Janet-DHS
Messages: 737
Registered: April 2022
Senior Member
Following is a response from DHS staff member, Tom Pullum:

Age in DHS surveys always means age at last birthday. If you want to select women who had their first birth before their 18th birthday, you would use "keep if v212<18".
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