Definition
The self-reported number of cigarettes usually smoked daily by a woman during the first 20 weeks of pregnancy
Components
Data Element (this item)
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Data Element ConceptFemale (pregnant)—number of cigarettes smoked (first 20 weeks of pregnancy)
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Object ClassFemale
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PropertyNumber of cigarettes smoked first 20 weeks of pregnancy
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Value DomainNumber of tobacco cigarettes N[NN]
Representation
This representation is based on the value domain for this data element, more information is available at " Number of tobacco cigarettes N[NN] ".| Data Type | Number |
|---|---|
| Format | N[NN] |
| Maximum character length | 3 |
| Value | Meaning | Start Date | End Date | |
|---|---|---|---|---|
| Supplementary Values | 998 | Occasional smoking (less than one) | ||
| 999 | Not stated/inadequately described |
Comments
Guide for use:
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.
Context:
Perinatal Statistics