Home » Topics » Fertility » Wanted Total Fertility Rate in DHS
Wanted Total Fertility Rate in DHS [message #2448] |
Thu, 19 June 2014 09:14 |
AbdoulM
Messages: 2 Registered: June 2014
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Hello!
I am working on fertility using the DHS data from several african countries
The Total Fertility Rate (TFR) values I computed are exactely the same as in the DHS reports
But when computing the Wanted TFR, the values are not matching the ones published in the reports
The method consist in excluding the unwanted births before using the Schoumaker's stata software module (tfr2)
Find below how I made it
Please help me understand where the differences come from
Thanks,
I use the definition of "wantedness" as given in the "Guide to DHS Statistics" (Page 87, Updated Sept. 2006)
Let's remind that:
*b3_ is the date of birth in CMC;
*b5_ is the survival status (1 or 0);
*b7_ is the age at death, mounth imputed;
*v613 is the ideal number of children.
A birth is considered wanted if the number of living children at the time of conception of the child i (NLC_i) is less than the ideal number of children (INC), that is: i is wanted if NLC_i < INC
The time of conception for a child i is: dconcep_i = b3_i - 9
A preceding child (let's say j) is considered living at the time of conception of the child i if:
**C1) j is born before the date of conception of i, That is: b3_j < dconcep_i
**C2) j is living at the time of the survey, That is: b5_j==1
**C3) OR j died at or before the date of conception of i, That is: b3_j + b7_j <= dconcep_i
According to these conditions, I create a dummy variable (G) as:
For every child j preceding i,
*G_ij =1 if {C1 AND (C2 OR C3)}
*If no, G_ij=0
The number of living children at the time of conception of i is computed as NLC_i = Sum(G_ij) over j.
For every i, we can now compare NLC_i with the INC
*If NLC_i < INC, then i is wanted
*If no, i is not wanted
I then recode every b3_i (i=1 to 6) as: recode b3_i (0/21600=0) if NLC_i > INC
This is supposed to exclude all the unwanted births when computing the TFR (with the Schoumaker's tfr2)
I am aware that the missing values in Stata can distort the resluts, so I write the commands accordingly.
Find attached the do-file, it may help understanding the process
Regards,
AbdoulM
University of Geneva
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Wanted Total Fertility Rate in DHS
By: AbdoulM on Thu, 19 June 2014 09:14
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Re: Wanted Total Fertility Rate in DHS
By: Liz-DHS on Tue, 24 June 2014 14:32
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Re: Wanted Total Fertility Rate in DHS
By: Liz-DHS on Tue, 24 June 2014 15:05
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Re: Wanted Total Fertility Rate in DHS
By: AbdoulM on Tue, 24 June 2014 18:23
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Re: Wanted Total Fertility Rate in DHS
By: ashwini on Fri, 18 May 2018 01:42
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Re: Wanted Total Fertility Rate in DHS
By: Liz-DHS on Fri, 25 May 2018 14:58
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Re: Wanted Total Fertility Rate in DHS
By: ashwini on Tue, 12 February 2019 01:26
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Re: Wanted Total Fertility Rate in DHS
By: Opeyemi on Thu, 01 September 2022 10:25
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Re: Wanted Total Fertility Rate in DHS
By: Janet-DHS on Thu, 08 September 2022 15:33
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Re: Wanted Total Fertility Rate in DHS
By: Mercysh on Thu, 31 August 2017 10:05
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Re: Wanted Total Fertility Rate in DHS
By: Maurel on Mon, 04 September 2017 09:20
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Re: Wanted Total Fertility Rate in DHS
By: Liz-DHS on Sun, 10 September 2017 13:18
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Re: Wanted Total Fertility Rate in DHS
By: sarthak on Tue, 15 November 2022 08:36
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Re: Wanted Total Fertility Rate in DHS
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