Last updated 09/11/2015

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The Atlas of Healthcare Variation displays easy-to-use maps, graphs, tables and commentaries that highlight variations by geographic area in the provision and use of specific health services and health outcomes.

The Atlas is designed to prompt debate and raise questions about health service use and provision amongst clinicians, users and providers of health services about why any differences exist, and to stimulate improvement through this debate.

The Atlas highlights variation but does not suggest an ideal level (high is not necessarily good or bad; the average is not necessarily the ideal). This means that it should not be used a tool for judging the performance of one geographic area against another.

For further information read our questions & answers, watch the introductory video or find out how to use the Atlas.


The Atlas is organised by domains, which cover specific clinical areas. Select a domain below to view the Atlas.

Domain Summary
Asthma This gives clinicians, patients and providers an overview of asthma prevalence, admission rates and medicine use by district health board (DHB).
Demography This shows life expectancy and other basic demographic data around age structure, ethnicity and deprivation.
Cardiovascular Disease This shows the use of secondary prevention medicines in New Zealand residents hospitalised with an ischaemic cardiovascular disease event between 2000 and 2010.
Maternity This shows variation in medical procedures and complications associated with birth.
Mental Health This presents a small selection of continuity indicators from the Key Performance Indicator Framework for New Zealand Mental Health and Addiction Services report.
Polypharmacy in older people This shows rates of dispensing of medicines in people aged 65 and over.
Surgical procedures This shows surgical intervention rates for tonsillectomy and ventilation tube (grommet) insertion.
Trauma This shows variation in the performance of trauma services across New Zealand.
Well Child/Tamariki Ora This shows how early childhood health services work for children and their families.

 Introducing the Atlas

Atlas clinical lead, Dr Nigel Millar, and CEO of the Health Quality & Safety Commission, Dr Janice Wilson, explain the purpose of the Atlas of Healthcare Variation.


 How to use the Atlas

Learn how to find your way around the Atlas reports by using the text version of the user guide or viewing the video below.


If you would like to comment on the design of the reports or have suggestions for future reports please email us.


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