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Female (pregnant)—number of cigarettes smoked (per day first 20 weeks of pregnancy), number N[NN]

Identifying and definitional attributes

Metadata item type:Help on this termData Element
Short name:Help on this termNumber of tobacco cigarettes smoked per day first 20 weeks of pregnancy
METeOR identifier:Help on this term365441
Registration status:Help on this termHealth, Standard 03/12/2008
Definition:Help on this termThe self-reported number of cigarettes usually smoked daily by a woman during the first 20 weeks of pregnancy
Context:Help on this termPerinatal Statistics
Data Element Concept:Female (pregnant)—number of cigarettes smoked (first 20 weeks of pregnancy)

Value domain attributes

Representational attributes

Representation class:Help on this termQuantity
Data type:Help on this termNumber
Format:Help on this termN[NN]
Maximum character length:Help on this term3
Supplementary values:Help on this term
ValueMeaning
998Occasional smoking (less than one)
999Not stated/inadequately described

Data element attributes

Collection and usage attributes

Guide for use:Help on this term

Data should be collected after the first 20 weeks of pregnancy; e.g. the next antenatal visit after the first 20 weeks would be an ideal time.
‘The first 20 weeks of pregnancy’ is defined as less than or equal to 19 weeks + 6 days.
‘Usually’ is defined as ‘according to established, or frequent usage; commonly, ordinarily; as a rule’. If  a woman reports having quit smoking at some point during the first 20 weeks of pregnancy, the value recorded should be the number of cigarettes usually smoked daily prior to quitting.

Collection methods:Help on this term

Recommended question: 'How many tobacco cigarettes did the woman usually smoke during the first 20 weeks of pregnancy?', where the first 20 weeks of pregnancy is defined as less than or equal to 19 weeks + 6 days.

If a woman did not smoke tobacco cigarettes at any time during the first 20 weeks of pregnancy, a value of 000 should be recorded.

Occasional smoking
Women who report that they usually smoked less than one tobacco cigarette per day should have a value recorded of 998.

Source and reference attributes

Submitting organisation:Help on this termNational Perinatal Data Development Committee

Relational attributes

Implementation in Indicators:Help on this termUsed as numerator
National Core Maternity Indicators: PI 01-Tobacco smoking in pregnancy for all women giving birth (2013) Health, Superseded 02/02/2016
National Core Maternity Indicators: PI 01—Tobacco smoking in pregnancy for all women giving birth (2016) Health, Superseded 06/09/2018
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