Publication, Part of National Pregnancy in Diabetes Audit
National Pregnancy in Diabetes Audit - Hybrid closed loop 2025 (01 January 2025 to 31 December 2025)
Audit
Update to early HbA1c denominator
The denominator for the early HbA1c measure for women using "Other insulin types" has been revised. This results in a change to the underlying data shown in Figure 17 only. All other analysis and figures remain unchanged.
20 August 2026 12:00 PM
Update to deprivation quintile labelling
The deprivation quintile labels within the Excel file have been revised to match the labelling convention used in other NDA publications. This is a presentational change only and has no impact on the underlying data or results.
11 August 2026 13:00 PM
Summary
The National Pregnancy in Diabetes (NPID) audit is part of the National Diabetes Audit (NDA) programme which is managed by NHS England. It aims to support clinical teams to deliver better care and outcomes for women with diabetes who become pregnant and has been running since 2014.
This report summarises national findings on the use of hybrid closed loop (HCL) technologies among women with type 1 diabetes whose pregnancies ended in the 2025 audit year. This analysis includes data on pregnancies which ended between 1st January and 31st December 2025 where insulin type was recorded. As HCL data has only been collected in NPID since May 2025 it is likely that this is an underrepresentation of the true usage of HCL in pregnant women for this time period.
Highlights
The data file in this publication provides a national level spotlight analysis on HCL usage for women with type 1 diabetes.
Resources
Last edited: 20 August 2026 11:59 am