Pregnancy—estimated duration (at the first visit for antenatal care), completed weeks N[N]

Identifying and definitional attributes
Metadata item type:	Data Element
Short name:	Pregnancy duration at the first antenatal care visit
Synonymous names:	Estimated pregnancy gestation in completed weeks at the first visit for antenatal care.
METEOR identifier:	379597
Registration status:	Health, Superseded 02/08/2017 Indigenous, Superseded 22/10/2018 Tasmanian Health, Superseded 03/07/2020
Definition:	The total number of completed weeks of a pregnancy's estimated duration on the day of the first visit for antenatal care.
Data Element Concept:	Pregnancy—estimated duration

Value domain attributes

Representational attributes

Representation class:

Total

Data type:

Number

Format:

N[N]

Maximum character length:

Supplementary values:

Value	Meaning
99	Not stated/unknown

Unit of measure:

Completed weeks

Data element attributes

Collection and usage attributes

Guide for use:

The day of the first visit for antenatal care is the day of the first contact with a midwife, medical practitioner, or other recognised health professional where antenatal care was provided. It does not include a contact if it was to confirm the pregnancy only or those contacts that occurred during the pregnancy that related to other non pregnancy related issues. It does not include a first contact after the onset of labour.

Antenatal care visits are attributed to the pregnant woman. The duration of the pregnancy on that day is the same as the gestational age of the fetus or baby on that day.

Collection methods:

To be collected at any time during the pregnancy or birth episode after the best estimate of gestational age has been determined.

The method of data collection will usually be from health records of pregnancy and/or birth.

The valid range of completed weeks for Pregnancy duration at the first visit for antenatal care is 3–46.

Source and reference attributes

Submitting organisation:

National Perinatal Data Development Committee

Relational attributes

Related metadata references:

Implementation in Data Set Specifications:

All attributes +

Indigenous primary health care DSS 2015-17 Health, Superseded 25/01/2018
Indigenous, Superseded 27/02/2018

DSS specific attributes +
*Implementation start date:* 01/07/2015 *Implementation end date:* 30/06/2017 *DSS specific information:* This item is only collected for women who gave birth during the preceding 12 months.

Indigenous primary health care NBEDS 2017–18 Health, Superseded 06/09/2018
Indigenous, Superseded 22/10/2018

DSS specific attributes +
*Implementation start date:* 01/07/2017 *Implementation end date:* 30/06/2018 *DSS specific information:* This item is only collected for women who gave birth during the preceding 12 months.

Perinatal NMDS 2010-2011 Health, Superseded 21/12/2010

DSS specific attributes +
*Implementation start date:* 01/07/2010 *Implementation end date:* 30/06/2011 *DSS specific information:* This item is collected for the mother only.

Perinatal NMDS 2011-12 Health, Superseded 07/03/2012

DSS specific attributes +
*Implementation start date:* 01/07/2011 *Implementation end date:* 30/06/2012 *DSS specific information:* This item is collected for the mother only.

Perinatal NMDS 2012-13 Health, Superseded 07/02/2013

DSS specific attributes +
*Implementation start date:* 01/07/2012 *Implementation end date:* 30/06/2013 *DSS specific information:* This item is collected for the mother only.

Perinatal NMDS 2013-14 Health, Superseded 07/03/2014

DSS specific attributes +
*Implementation start date:* 01/07/2013 *Implementation end date:* 30/06/2014 *DSS specific information:* This item is collected for the mother only.

Perinatal NMDS 2014-18 Health, Superseded 02/08/2017

DSS specific attributes +
*Implementation start date:* 01/07/2014 *Implementation end date:* 30/06/2018 *DSS specific information:* This item is collected for the mother only.

Tasmanian Perinatal Data Set - 2016 Tasmanian Health, Standard 30/01/2017