This metadata item is common to both the National Community Services Data Dictionary and the National Health Data Dictionary.
Privacy issues need to be taken account in asking persons their date of birth.
Wherever possible and wherever appropriate, Date of birth should be used rather than Age because the actual date of birth allows more precise calculation of age. When Date of birth is estimated or default value, national health and community services collections typically use 0101 or 0107 or 3006 as the estimate or default for DDMM. It is suggested that different rules for reporting data may apply when estimating the Date of birth of children aged under 2 years because of the rapid growth and development of children within this age group which means that a child's development can vary considerably over the course of a year. Thus, more specific reporting of estimated age is suggested.
NHDD specific: DSS Cardiovascular disease (clinical)
Age is an important non-modifiable risk factor for cardiovascular conditions. The prevalence of cardiovascular conditions increases dramatically with age. For example, more than 60% of people aged 75 and over had a cardiovascular condition in 1995 compared with less than 9% of those aged under 35. Aboriginal and Torres Strait Islander peoples are more likely to have cardiovascular conditions than other Australians across almost all age groups. For example, in the 25-44 age group, 23% of Indigenous Australians reported cardiovascular conditions compared with 16% among other Australians (Heart, Stroke and Vascular Diseases: Australian Facts 2001. AIHW).
AS5017 Health Care Client Identification, 2002, Sydney: Standards Australia
AS4846 Health Care Provider Identification, 2004, Sydney: Standards Australia