Used in computer assisted telephone interview (CATI) surveys in cases where the specific age is not available.
Depending on the collection a different starting age may be used, but should map back to the standard output.
Information at a finer level can be collected as long as it maps back to the proposed data domain, e.g. 75+ age group can be split into 75-84 and 85 years or older.
Although collection of date of birth allows more precise calculation of age, as does the collection of a single age, this may not always be feasible. Age range should be derived from a question on date of birth or age at last birthday.
In cases where an exact age is not known or not stated, age may be reported as an age range. The age ranges are consistent with the standard 10 year ranges recommended by the ABS.
Source and reference attributes
National Public Health Information Working Group
ABS, Statistical Concepts Library, Standards for Social, Labour and Demographic Variables. Age.
Reference through: http://www.abs.gov.au/Ausstats/abs@.nsf/StatsLibrary and choose, Other ABS Statistical Standards, Standards for Social, Labour and Demographic Variables, Demographic Variables, Age.
Implementation in Data Set Specifications: All attributes +