Female—parity, total pregnancies N[N]

Identifying and definitional attributes
Metadata item type:	Data Element
Short name:	Parity
METEOR identifier:	696262
Registration status:	Health, Superseded 03/12/2020 Tasmanian Health, Superseded 11/06/2021
Definition:	The total number of previous pregnancies experienced by a female that have resulted in a live birth or a stillbirth.
Context:	Perinatal
Data Element Concept:	Female—parity

Value domain attributes

Representational attributes

Representation class:

Total

Data type:

Number

Format:

N[N]

Maximum character length:

Supplementary values:

Value	Meaning
99	Not stated

Unit of measure:

Pregnancy

Data element attributes

Collection and usage attributes

Guide for use:

To calculate parity, count all previous pregnancies that resulted in a live birth or a stillbirth of at least 20 weeks gestation or at least 400 grams birthweight. Excluded from the count are:

the current pregnancy
pregnancies resulting in spontaneous or induced abortions before 20 weeks gestation
ectopic pregnancies.

A primipara (a female giving birth for the first time) has a parity of 0.

Collection methods:

A pregnancy with multiple fetuses is counted as one pregnancy.

Comments:

The number of previous pregnancies that resulted in a birth is an important component of the female's reproductive history. Parity may be a risk factor for adverse maternal and perinatal outcomes.

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 2019–20
Health, Superseded 03/12/2020

DSS specific attributes +
*Implementation start date:* 01/07/2019 *Implementation end date:* 30/06/2020 *DSS specific information:* This data element is recorded for the mother only.

Perinatal NMDS 2020–21
Health, Superseded 03/12/2020

DSS specific attributes +
*Implementation start date:* 01/07/2020 *Implementation end date:* 30/06/2021 *DSS specific information:* This data element is recorded for the mother only.

Implementation in Indicators:

Used as Numerator

National Core Maternity Indicators: PI 03–Episiotomy for females giving birth for the first time and giving birth vaginally, 2021 Health, Standard 17/12/2021

National Core Maternity Indicators: PI 05–Induction of labour for selected females giving birth for the first time, 2021 Health, Standard 17/12/2021

National Core Maternity Indicators: PI 06–Caesarean section for selected females giving birth for the first time, 2021 Health, Standard 17/12/2021

National Core Maternity Indicators: PI 07–Non-instrumental vaginal birth for selected females giving birth for the first time, 2021 Health, Standard 17/12/2021

National Core Maternity Indicators: PI 08–Instrumental vaginal birth for selected females giving birth for the first time, 2021 Health, Standard 17/12/2021

National Core Maternity Indicators: PI 13–Third and fourth degree tears for vaginal births, 2021 Health, Standard 17/12/2021

National Core Maternity Indicators: PI 15–Females having their second birth vaginally whose first birth was by caesarean section, 2021 Health, Standard 17/12/2021

Used as Denominator

National Core Maternity Indicators: PI 03–Episiotomy for females giving birth for the first time and giving birth vaginally, 2021 Health, Standard 17/12/2021

National Core Maternity Indicators: PI 05–Induction of labour for selected females giving birth for the first time, 2021 Health, Standard 17/12/2021