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Te Pū rauemi KOWHEORI-19 COVID-19 resource hub

Support for people working in health during the COVID-19 pandemic. Find information about how you can support yourselves and others, including consumers, teams and colleagues which complements and aligns with Ministry of Health resources.

Kia āta kōwhiri Choosing Wisely

The Choosing Wisely campaign seeks to reduce harm from unnecessary and low-value tests and treatment.

Diabetes single map PHO analysis


The goal of this Atlas of Healthcare Variation domain is to investigate the quality of care given to people with diabetes. The data is not intended to form a basis for judgement or definitive statements of quality, rather to raise questions about potential areas for quality improvement. 

The indicators were developed with the help of an expert advisory group. 

Key messages

  • It is estimated that about 307,000 people had diabetes in 2022, an increase of around 15,000 people from 2021. 
  • Across all age groups, 6.8 percent of men were estimated to have diabetes compared with 5.9 percent of women. The Pacific population had the highest estimated rate of diabetes at 12.5 percent, followed by the Indian population (9.5 percent) and the Māori population (7.0 percent).
  • In 2022, age-specific rates of diabetes prevalence varied by more than two-fold across Health New Zealand districts (formerly called district health boards or DHBs). For example, in those aged 65–74 years, prevalence ranged from 9.4 percent to 27.9 percent of a district population.
  • The increase in diabetes prevalence following the COVID-19 pandemic is concerning. From 2018 to 2020, there was a slight increase, from 5.6 percent to 5.8 percent, but the sharpest rise occurred between 2020 and 2022, when prevalence jumped to 6.4 percent.
  • In 2022, about 67.7 percent of those with diabetes regularly received any hypoglycaemic medication. The regular dispensing of medicines for glycaemic control varied around 1.5-fold by Health New Zealand district, from between 65.2 percent to 83.4 percent of those aged 65‒74 years with diabetes regularly receiving those medicines in 2022. Over the last 5 years, rates have remained stable.
  • Across all age groups, Māori had higher rates of admissions for diabetes-related complications, such as diabetic ketoacidosis, hypoglycaemia and lower-limb amputations.
  • The percentage of bed-days occupied by people with diabetes increased with age, reaching a peak in the 65–74-year age group (27.6 percent). Additionally, significant differences were observed between ethnicities.


Published: 29 Oct 2021 Modified: 2 Jul 2024