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Estimating preterm birth
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I'm working with IR datasets from several countries in sub-Saharan Africa. I'd like to ask if there is any way to estimate preterm birth from women's daraset, as this variable doesn't seem to appear anywhere.
Thanks in advance for your suggestions!
Ghose]]>Ghose2020-02-01T16:05:08-00:00Re: Estimating preterm birth
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Following is a response from Senior DHS Specialist, Kerry MacQuarrie:
Please look at the b20 variables in the IR file. This is duration of pregnancy. The suffix _0x refers to the birth index number (birth order).
]]>Bridgette-DHS2020-02-07T16:04:12-00:00Re: Estimating preterm birth
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lillo?S2020-04-28T13:16:42-00:00Re: Estimating preterm birth
https://userforum.dhsprogram.com/index.phpindex.php?t=rview&goto=19152&th=8649#msg_19152
How we calculate the day of the first union in given month and year?]]>mianrashid2020-04-30T05:13:00-00:00Re: Estimating preterm birth
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You might want to use the Child file (KR) or the Births file (BR), because in these files, you will have just one variable for each observation.
]]>Bridgette-DHS2020-05-01T14:11:36-00:00Re: Estimating preterm birth
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lillo?S2020-05-01T14:24:44-00:00Re: Estimating preterm birth
https://userforum.dhsprogram.com/index.phpindex.php?t=rview&goto=19197&th=8649#msg_19197
We do not have precise information on preterm births (see post: https://userforum.dhsprogram.com/index.php?t=msg&goto=11 535&S=Google). We ask about the number of months a woman was pregnant in calendar months (not 28 days). However, it is difficult to assess gestational age is limited in low-resource settings (see this article, for example: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5997365/#S1). That said, I would use less than 9 months as an approximation.
You could also use low birthweight as a proxy, as low birthweight and preterm birth are associated, although in places where birthweight is not often assessed or recorded on cards that mothers have possession of to present during the interview, perceived size at birth is also subject to error ( https://bmjopen.bmj.com/content/bmjopen/9/12/e031986.full.pd f).
Thanks,
Lindsay Mallick
Lead Research Analyst]]>lmallick2020-05-08T17:34:14-00:00Re: Estimating preterm birth
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When you have the month and year of an event, but not the day, and some calculation depends on knowing the day, we usually assign the 15th of the month. That will minimize the error. I think you may find exceptions, in which the 1st of the month is assigned (or is implied by the way the calculation is done). But usually the 15th.]]>Bridgette-DHS2020-05-08T18:29:54-00:00