Effective management of chronic conditions requires multidisciplinary, coordinated care. Whilst some patients receive this type of care, the current Australian health system does not provide the ideal support for integrated team care. Half of the Australian population has at least one chronic condition, with large variation in the severity and complexity of conditions and the intensity of care patients require.

The Atlas series examines variation in use of some commonly prescribed medicines. Medicines are effective when used appropriately for the right duration. However, substantial variation in use can suggest that some individuals and the community are being exposed to avoidable harms and unnecessary costs, while others may be missing out on an effective treatment.

The range of tests, technologies and treatments that can be used to investigate and manage health problems is growing. Whilst this can bring great benefit, there is an associated risk of diagnosing and treating people for conditions that would never have caused them harm (over-diagnosis).