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National Diabetes Audit and Diabetes Prevention Programme (NDA-DPP) pilot study

This pilot looked at how GP practices record information on non-diabetic hyperglycaemia, (pre-diabetes), to identify the best way to add this data to the National Diabetes Audit dataset.

View the results of the National Diabetes Audit Diabetes Prevention Programme pilot study.

Purpose of the pilot

From 2017-18, the National Diabetes Audit (NDA) will collect information on patients with non-diabetic hyperglycaemia, also known as pre-diabetes or impaired glucose regulation, so their care can be monitored and improved. This pilot investigated how non-diabetic hyperglycaemia information is being recorded so that we can identify how best to add it to the existing NDA dataset. We needed to find out how well read codes are populated, and get an understanding of the number of people with non-diabetic hyperglycaemia within practices.

Information we collected

The DPP Pilot only collected information about care that is already recorded within GP practices, such as:

  • latest blood pressure result
  • HbA1c (blood glucose levels) result
  • whether an offer had been made to the prevention programme education course

You can view a full list of the information collected in the NDA DPP technical specification.

Scope of the pilot

NHS England recruited 22 GP practices in England to take part in the pilot.


Information about people with non-diabetic hyperglycaemia, impaired glucose tolerance or pre-diabetes will be collected as part of the NDA core collection from 2017-18 onwards.

You can view the full results of the pilot study.


We worked with Diabetes UK and Public Health England to run this pilot collection.


NDA DPP technical specification

NDA DPP requirement specification

NDA DPP primary care specification