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Birthweight

Identifying and definitional attributes

Metadata item type:Help on this termGlossary Item
METEOR identifier:Help on this term733258
Registration status:Help on this term
  • Health, Standard 03/12/2020
  • Tasmanian Health, Standard 24/12/2021
Definition:Help on this term

The first weight of a live born or stillborn baby obtained after birth. The World Health Organization further defines the following categories:

  • extremely low birthweight: less than 1,000 grams (up to and including 999 grams),
  • very low birthweight: less than 1,500 grams (up to and including 1,499 grams),
  • low birthweight: less than 2,500 grams (up to and including 2,499 grams).
Context:Help on this term

Perinatal

Collection and usage attributes

Comments:Help on this term

The definitions of low, very low, and extremely low birthweight do not constitute mutually exclusive categories. Below the set limits they are all-inclusive and therefore overlap (i.e. low includes very low and extremely low, while very low includes extremely low).

For live births, birthweight should preferably be measured within the first hour of life before significant postnatal weight loss has occurred. While statistical tabulations include 500 gram groupings for birthweight, weights should not be recorded in those groupings. The actual weight should be recorded to the degree of accuracy to which it is measured.

Source and reference attributes

Submitting organisation:Help on this term

National Perinatal Data Development Committee

Reference documents:Help on this term

World Health Organization 2004. International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10), 2nd edn. Geneva: World Health Organization.

Relational attributes

Related metadata references:Help on this term
See also Birthweight
  • Health, Superseded 03/12/2020
  • Indigenous, Superseded 14/07/2021
  • Tasmanian Health, Standard 03/07/2020
Supersedes Birthweight
  • Health, Superseded 03/12/2020
  • Indigenous, Standard 02/04/2019
  • Tasmanian Health, Standard 24/06/2020
Metadata items which use this glossary item:Help on this term
Birth status code N
  • Health, Standard 03/12/2020
  • Indigenous, Standard 14/07/2021
Birthweight recorded indicator
  • Health, Standard 12/12/2018
  • Indigenous, Standard 02/04/2019
Live birth
  • Health, Standard 03/12/2020
  • Indigenous, Standard 14/07/2021
  • Tasmanian Health, Standard 24/12/2021
Perinatal NBEDS 2021–22
  • Health, Superseded 17/12/2021
Perinatal NBEDS 2022–23
  • Health, Standard 17/12/2021
Perinatal NMDS 2021–22
  • Health, Superseded 17/12/2021
Perinatal NMDS 2022–23
  • Health, Standard 17/12/2021
Person—birthweight recorded indicator
  • Health, Standard 12/12/2018
  • Indigenous, Standard 02/04/2019
Person—birthweight recorded indicator, yes/no code N
  • Health, Standard 12/12/2018
  • Indigenous, Standard 02/04/2019
Product of birth—birth order, code N
  • Health, Standard 03/12/2020
Product of birth—birthweight, code N
  • Indigenous, Standard 14/07/2021
Product of birth—birthweight, total grams N[NNN]
  • Health, Standard 03/12/2020
Stillbirth (fetal death)
  • Health, Standard 03/12/2020
  • Indigenous, Standard 14/07/2021
  • Tasmanian Health, Standard 24/12/2021
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