Birth event—labour onset type, code N

Identifying and definitional attributes
Metadata item type:	Data Element
Short name:	Onset of labour
METEOR identifier:	269942
Registration status:	Health, Superseded 07/03/2014
Definition:	The manner in which labour started in a birth event, as represented by a code.
Data Element Concept:	Birth event—labour onset type

Value domain attributes

Representational attributes

Representation class:

Code

Data type:

Number

Format:

Maximum character length:

Permissible values:

Value	Meaning
1	Spontaneous
2	Induced
3	No labour

Supplementary values:

Value	Meaning
4	Not stated

Collection and usage attributes

Guide for use:

Labour commences at the onset of regular uterine contractions, which act to produce progressive cervical dilatation, and is distinct from spurious labour or pre-labour rupture of membranes.

If prostaglandins were given to induce labour and there is no resulting labour until after 24 hours, then code the onset of labour as spontaneous.

CODE 3 No labour
Can only be associated with a caesarean section.

Data element attributes

Source and reference attributes

Submitting organisation:

National Perinatal Data Development Committee

Relational attributes

Related metadata references:

Implementation in Data Set Specifications:

All attributes +

Perinatal NMDS Health, Superseded 06/09/2006

DSS specific attributes +
*Implementation start date:* 01/07/2006 *Implementation end date:* 30/06/2007 *DSS specific information:* How labour commenced is closely associated with method of birth and maternal and neonatal morbidity. Induction rates vary for maternal risk factors and obstetric complications and are important indicators of obstetric intervention.

Perinatal NMDS Health, Superseded 07/12/2005

DSS specific attributes +
*Implementation start date:* 01/07/2005 *Implementation end date:* 30/06/2006

Perinatal NMDS 2007-2008 Health, Superseded 05/02/2008

DSS specific attributes +
*Implementation start date:* 01/07/2007 *Implementation end date:* 30/06/2008 *DSS specific information:* How labour commenced is closely associated with method of birth and maternal and neonatal morbidity. Induction rates vary for maternal risk factors and obstetric complications and are important indicators of obstetric intervention.

Perinatal NMDS 2008-2010 Health, Superseded 02/12/2009

DSS specific attributes +
*Implementation start date:* 01/07/2008 *Implementation end date:* 30/06/2010 *DSS specific information:* How labour commenced is closely associated with method of birth and maternal and neonatal morbidity. Induction rates vary for maternal risk factors and obstetric complications and are important indicators of obstetric intervention.

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:* How labour commenced is closely associated with method of birth and maternal and neonatal morbidity. Induction rates vary for maternal risk factors and obstetric complications and are important indicators of obstetric intervention. 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:* How labour commenced is closely associated with method of birth and maternal and neonatal morbidity. Induction rates vary for maternal risk factors and obstetric complications and are important indicators of obstetric intervention. 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:* How labour commenced is closely associated with method of birth and maternal and neonatal morbidity. Induction rates vary for maternal risk factors and obstetric complications and are important indicators of obstetric intervention. 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:* How labour commenced is closely associated with method of birth and maternal and neonatal morbidity. Induction rates vary for maternal risk factors and obstetric complications and are important indicators of obstetric intervention. This item is collected for the mother only.

Implementation in Indicators:

Used as Numerator

National Core Maternity Indicators: PI 05-Induction of labour for selected women giving birth for the first time (2013)Health, Superseded 02/02/2016