Number of units (categorical)
Name alcohol_units_cat_gprd
Chapter Health Behaviour/Alcohol
Definition
Number of units consumed per day, as recorded in Read codes in GPRD. This variable does not capture those who abstain from alcohol or where amount is not recorded; these are captured by alcohol_drinker.
Data Type Categorical
Data sources GPRD
Repeated Yes
Valid event date range 01/01/1900 - 25/03/2010
Agreed 02.03.2011 (Revision 1)
Category Definition
0 Number of units not recorded
1 Less than 1 unit/day
2 1-2 units/day
3 3-6 units/day
4 7-9 units/day
5 More than 9 units/day
Implementation
Category assigned based on code list.
Codelist version1
Codelist authorsJulie George, Ruzan Udumyan, Harry Hemingway
Creation date21 Apr 2011
Category (code) Clinical code Clinical term Datasource lookup
Less than 1 unit/day (1) 1362.00 Trivial drinker - <1u/day 12975
1-2 units/day (2) 1363.00 Light drinker - 1-2u/day 12972
3-6 units/day (3) 1364.00 Moderate drinker - 3-6u/day 322
7-9 units/day (4) 1365.00 Heavy drinker - 7-9u/day 1618
More than 9 units/day (5) 1366.00 Very heavy drinker - >9u/day 12977
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