This site contains the monthly Ambulance Quality Indicators (AQI) Statistical Notes and spreadsheets. The AQI comprise the Systems Indicators (AmbSYS) and the Clinical Outcomes (AmbCO). Data are split by month and by each of the eleven Ambulance Services in England.

Background information for the statistics below is on the AQI landing page, including:

• links to pages like this one but for 2014-15 to 2023-24;
• text files and time series spreadsheets with all data back to April 2011;
• the specification guidance used by data providers;
• a Quality Statement, including user engagement and revisions policy;
• contact details for these statistics.

AQI Statistical Notes

10 April 2025 Statistical Note (PDF, 0.6MB)
13 March 2025 Statistical Note (PDF, 0.5MB)
13 February 2025 Statistical Note (PDF, 1.4MB)
9 January 2025 Statistical Note (PDF, 0.6MB)
12 December 2024 Statistical Note (PDF, 0.5MB)
14 November 2024 Statistical Note (PDF, 0.5MB)
10 October 2024 Statistical Note (PDF, 0.6MB)
12 September 2024 Statistical Note (PDF, 0.8MB)
8 August 2024 Statistical Note (PDF, 1.2MB)
11 July 2024 Statistical Note (PDF, 1.5MB)
13 June 2024 Statistical Note (PDF, 1.7MB)
9 May 2024 Statistical Note (PDF, 1.1MB)

When we revise AmbSYS or AmbCO, we remove all affected monthly spreadsheets, and put all the revised data into the Time Series and csv on the AQI landing page.