National Core Maternity Indicators: PI 01–Tobacco smoking in pregnancy for all females giving birth, 2019

Identifying and definitional attributes

Metadata item type:Indicator
Indicator type:Indicator
Common name:Tobacco smoking in pregnancy
Short name:PI 01–Tobacco smoking in pregnancy for all females giving birth, 2019
METeOR identifier:717528
Registration status:Health, Standard 19/06/2019
Description:

Among all females who gave birth, the proportion who (a) reported smoking tobacco in the first 20 weeks of pregnancy, and (b) reported smoking tobacco after the first 20 weeks of pregnancy and reported smoking at any time during pregnancy.

Rationale:

This outcome indicator is used to monitor public health.

Indicator set:National Core Maternity Indicators, 2019 Health, Standard 19/06/2019

Collection and usage attributes

Computation description:

(a) The number of females who gave birth and reported smoking in the first 20 weeks of pregnancy, divided by the total number of females who have gave birth, and multiplied by 100.

(b) The number of females who gave birth and reported smoking after the first 20 weeks of pregnancy, divided by the total number of females who have gave birth and reported smoking during pregnancy, and multiplied by 100.

A birth is defined as an event in which a baby comes out of the uterus after a pregnancy of at least 20 weeks gestation or weighing 400 grams or more.

Smoking refers to the use of cigarettes or inhaled tobacco.

Computation:

100 × (Numerator ÷ Denominator)

Numerator:

(a) The number of females who gave birth and reported smoking tobacco in the first 20 weeks of pregnancy.
(b) The number of females who gave birth and reported smoking tobacco after the first 20 weeks of pregnancy.

Numerator data elements:
Data Element / Data SetFemale (pregnant)—tobacco smoking indicator (first twenty weeks of pregnancy), yes/no code N
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetFemale (pregnant)—tobacco smoking indicator (after twenty weeks of pregnancy), yes/no code N
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetBirth event—birth method, code N
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Denominator:

(a) The total number of females who gave birth with a stated smoking status.

(b) The total number of females who gave birth and reported smoking at any time during pregnancy.

Denominator data elements:
Data Element / Data SetData Element

 Smoking status during pregnancy


Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use

 Data source type: Administrative by-product data


Data Element / Data SetBirth event—birth method, code N
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Disaggregation:
  • Year of birth
  • State or territory of birth
  • Mother's age at birth
  • Hospital annual number of births
  • Hospital sector
  • Indigenous status of mother
  • Remoteness category (from mother's area of usual residence)
  • Disadvantage quintile (from mother's area of usual residence)
  • Primary Health Network (from mother's area of usual residence)
  • Statistical local area 3 (from mother's area of usual residence)
Disaggregation data elements:
Data Element / Data SetBirth event—state/territory of birth, code N
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetPerson—Indigenous status, code N
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetData Element

Hospital annual number of births


Data Source
AIHW National Perinatal Data Collection (NPDC)
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetPerson—date of birth, DDMMYYYY
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetPerson—area of usual residence, statistical area level 2 (SA2) code (ASGS 2016) N(9)
Data Source
Perinatal National Minimum Data Set (NMDS)
NMDS / DSS
Perinatal NMDS 2014-18
Guide for use

Data source type: Administrative by-product data


Data Element / Data SetData Element

Hospital sector


Data Source
AIHW National Perinatal Data Collection (NPDC)
Comments:

Data elements are from the Perinatal National Minimum Data Set (NMDS) or have been provided as voluntary non-standardised items by the states and territories. Records with data that are missing, not stated or not interpretable have been excluded from the denominator.

Standardised data collection for smoking in pregnancy commenced for births from July 2010. This will enable reporting against parts (a) among all females who gave birth the proportion who reported smoking tobacco in the first 20 weeks of pregnancy, and (b) among all females who gave birth the proportion who reported smoking after 20 weeks of pregnancy and reported smoking at any time during pregnancy.

National Perinatal Data Collection (NPDC) data on smoking status and/or smoking quantity (number of cigarettes smoked) have been collected from New South Wales, Queensland, South Australia and Australian Capital Territory since 2001, and progressively from all other jurisdictions.

Representational attributes

Representation class:Percentage
Data type:Real
Unit of measure:Person
Format:

N[NN.N]

Data source attributes

Data sources:
Data SourcePerinatal National Minimum Data Set (NMDS)
Frequency
Annual
Data custodian

Australian Institute of Health and Welfare



Data SourceAIHW National Perinatal Data Collection (NPDC)
Frequency
Calendar years ending 31 December each year
Data custodian

Australian Institute of Health and Welfare


Source and reference attributes

Submitting organisation:

Australian Institute of Health and Welfare

Reference documents:

WHA (Women's Healthcare Australasia) 2007. Supporting excellence in maternity care: the core maternity indicators project: findings from the core maternity indicators project. Canberra: WHA.

Relational attributes

Related metadata references:

Supersedes National Core Maternity Indicators: PI 01–Tobacco smoking in pregnancy for all females giving birth, 2018 Health, Superseded 19/06/2019

Has been superseded by National Core Maternity Indicators: PI 01–Tobacco smoking in pregnancy for all females giving birth, 2020 Health, Standard 16/09/2020