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Home » Topics » Reproductive Health » Infertility as a composite variable (Calculating live birth and weighing the data using SPSS)
Infertility as a composite variable [message #22773] Wed, 05 May 2021 13:55 Go to next message
Bilen Araya is currently offline  Bilen Araya
Messages: 3
Registered: May 2021
Member
Hi All,

This is my first time using DHS dataset. I want to estimate the prevalence of infertility using the 2016 Ethiopian DHS data (EDHS 2016). There is no direct indicator for infertility and for that I would need to calculate it as a composite variable using binary logistic regression by SPSS. One of the variables I want to use is live birth (they can be dead at the time of the interview) which I couldn't find in the dataset. There are variables for ever born, living children, age at death and terminated pregnancy among others. Other articles have used live birth from DHS datasets. Thus, I am reaching out for how I can re-calculate live birth from the dataset.

Also, which variable should I use to weigh the dataset and with what formula?

Thank you very much!

Regards,
Bilen
Re: Infertility as a composite variable [message #22778 is a reply to message #22773] Thu, 06 May 2021 14:30 Go to previous messageGo to next message
Bridgette-DHS is currently offline  Bridgette-DHS
Messages: 2353
Registered: February 2013
Senior Member

Following is a response from DHS Research & Data Analysis Director, Tom Pullum:

The number of children ever born is v201 (in the IR file). Current pregnancy status is v218. Ever pregnant is given by v228. You can work with these variables. The weight variable is v005. Your statistical package will tell you how to use weights.

Re: Infertility as a composite variable [message #22782 is a reply to message #22778] Sun, 09 May 2021 20:56 Go to previous messageGo to next message
Bilen Araya is currently offline  Bilen Araya
Messages: 3
Registered: May 2021
Member
Thank you for your response.
In the dataset V228 is ever had a terminated pregnancy with a very small sample size. I am still not sure how I can use the three variables you listed to calculate live birth.
I have used the weight variable suggested.

Regards,
Bilen
Re: Infertility as a composite variable [message #22785 is a reply to message #22782] Mon, 10 May 2021 09:59 Go to previous messageGo to next message
Bridgette-DHS is currently offline  Bridgette-DHS
Messages: 2353
Registered: February 2013
Senior Member

Following is a response from DHS Research & Data Analysis Director, Tom Pullum:

I don't understand what you mean by "calculate live birth". Do you want to identify women who ever had a live birth? These are women with v201>0. Women who never had a live birth are those with v201=0. Women who never had a pregnancy are those with v201=0 and v228=0. Women who did not have a live birth in the past five years are those with v208=0. These are the main variables to measure childlessness, or primary or secondary infertility. What statistical package are you using? At DHS we mainly use Stata.
Re: Infertility as a composite variable [message #22787 is a reply to message #22785] Mon, 10 May 2021 14:33 Go to previous message
Bilen Araya is currently offline  Bilen Araya
Messages: 3
Registered: May 2021
Member
That is a great insight for me.

My confusion came from how the variables were defined in the recode manual. The variables V201, V208 do not mention whether the children were alive or dead at the time of birth. But now from your explanation, I understand that it is talking about live birth and I don't need to calculate it separately. I am also realizing that I can get pregnancy terminations for the past five years.

I will be using SPSS 27 for analysis. I am also considering using SPSS for data extraction and cleaning, and STATA for analysis.

Thank you very much for your assistance!

Regards,
Bilen
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