Female (pregnant)—estimated gestational age, total weeks NN
Identifying and definitional attributes
|Metadata item type:||Data Element|
|Short name:||Gestational age|
|Definition:||The estimated gestational age of the baby in completed weeks as determined by clinical assessment.|
|Data Element Concept:||Female (pregnant)—estimated gestational age|
Value domain attributes
|Maximum character length:||2|
|Unit of measure:||Week|
Data element attributes
Collection and usage attributes
|Guide for use:|
This is derived from clinical assessment when accurate information on the date of the last menstrual period is not available for this pregnancy.
Gestational age is frequently a source of confusion when calculations are based on menstrual dates. For the purposes of calculation of gestational age from the date of the first day of the last normal menstrual period and the date of delivery, it should be borne in mind that the first day is day zero and not day one.
Source and reference attributes
|Submitting organisation:||National Perinatal Data Development Committee|
|Origin:||International Classification of Diseases and Related Health Problems, 10 Revision, WHO, 1992|
|Related metadata references:|
Supersedes Gestational age, version 1, DE, NHDD, NHIMG, Superseded 01/03/2005.pdf (14.7 KB) No registration status
Has been superseded by Product of conception—gestational age, completed weeks N[N]
Is formed using Pregnancy—first day of the last menstrual period, date DDMMYYYY
|Implementation in Data Set Specifications:|
All attributes +
|Implementation in Indicators:|
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