Table 3. Final variable listing in current and historical visits.

Attributes	Time categories
Clinical fields
Current diagnoses	Current visit and ACTIVE diagnoses
Historical diagnoses	Up to 10 years—not including current diagnosis information
Current immunization	Current visit
Historical immunization	Within past 5 years—not including current visit
Current prescriptions	Within last 8 months
Historical prescriptions	Between 9 and 24 months
Current pathology test	Current visit
Current pathology result	Current visit
Historical pathology test	Within last 12 months—not including last visit
Historical pathology result	Within last 12 months—not including last visit
Current measurement	Current visit
Historical measurement	Within past 5 years—not including current visit
Billing details	Any
Demographic and other patient information
Alcohol usage	Last recorded
BP recorded	Last recorded and rated
Care goal	Last recorded
Reaction (allergies)	Last visit
Historical reaction	All information apart from last visit
Tobacco	Last recorded
Age	Last visit
Sex	Last visit
Department of Veterans Affairs status	Last visit
Pension status	Last visit
Aboriginal status	Last visit

Abbreviation: BP, blood pressure.