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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)

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
Values
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

References

Related content

Relation Count
Input in Derivations 0
Output in Derivations 0
Inclusion in Data Set Specifications 1
Inclusion in Data Distributions 0
As a numerator in an Indicator 1
As a denominator in an Indicator 0
As a disaggregation in an Indicator 0