Ambulance Quality Indicators

This contains background material for the Ambulance System Indicators and Clinical Outcomes for all eleven Ambulance Services in England.

The following webpages are / were updated monthly, with the latest Statistical Notes and spreadsheets:
Ambulance Quality Indicators Data 2019-20
Ambulance Quality Indicators Data 2018-19
Ambulance Quality Indicators Data 2017-18
Ambulance Quality Indicators Data 2016-17
Ambulance Quality Indicators Data 2015-16
Ambulance Quality Indicators Data 2014-15
Ambulance Quality Indicators Data 2013-14
Ambulance Quality Indicators Data 2012-13
Ambulance Quality Indicators Data 2011-12

Time Series Data
In the following interactive spreadsheets, you can select whether to view data for all England, an individual Trust, or a region.
Ambulance Systems Indicators Time Series to January 2020 (xlsx, 1010KB) (published on 13 February 2020): Systems Indicators from August 2017 to the latest published month, against specification 20190912 below.
Old Ambulance Systems Indicators Time Series to March 2018 (xlsx, 658KB) (published on 10 May 2018): Systems Indicators from April 2011 to March 2018 against specifications v1.31 and v1.4 below.
Ambulance Clinical Outcomes Time Series to September 2019 (xlsx, 1108KB) (published on 13 February 2020): Clinical Outcomes from April 2011 to the latest published month, against specifications v1.31 and 20191213 below.

CSV Data
These files have the same data as the above spreadsheets, but without any formatting:
Systems Indicators August 2017 to January 2020 (csv, 298KB) (published on 13 February 2020)
Old Systems Indicators April 2011 to March 2018 (csv, 211KB) (published on 10 May 2018). See the 8 December 2016 Statistical Note, via the above 2016-17 link, about the lack of comparability for Category A, Red 1 and Red 2 data.
Clinical Outcomes April 2011 to September 2019 (csv, 317KB) (published on 13 February 2020)

This shows publication dates (including for revisions) and due dates for data collection.
2019-20 AQI Publication Timetable v4 (pdf, 34KB) (updated on 05 November 2019)

Current data specification
The following documents contain the specification guidance for data suppliers on what NHS England require.
Systems Indicators, for data starting July 2018:
20190912 AQI System Indicators specification (pdf, 389KB) (published on 12 September 2019)
Clinical Outcomes, for data starting April 2018:
20191213 AmbCO data specification (pdf, 217KB) (published on 13 December 2019)

Superseded data specification
Systems Indicators, for data from autumn 2017 up to June 2018:
20170926 AQI System Indicators specification (docx, 70KB) (updated on 26 September 2017)
Systems Indicators and Clinical Outcomes:
AQI Guidance v1.31 (docx, 173KB): up to January 2016.
AQI Guidance v1.4 (docx, 202KB): from January 2016 to autumn 2017.
AQI Guidance v3.0 (docx, 113KB): for the three Trusts that used Categories C1 to C4 from October 2016 to autumn 2017.
Clinical Outcomes definitions are unchanged in the above three documents.
20180412 STEMI and stroke timeliness specification (pdf, 149KB): additional STEMI and Stroke Clinical Outcomes from November 2017.

The government pledges on Ambulance waiting times appear on page 33 of the Handbook to the NHS Constitution.
The categories used by Ambulance Services to prioritise emergency incidents are within the description of the Ambulance Response Programme.

Supporting information
This Statement describes the quality of the statistics, along with a revisions policy, and information on user engagement:
AQI Quality Statement v1.2 (pdf, 356KB)

Alternative presentation of the old Systems Indicators and Clinical Outcomes data, with a map, call process flowchart, and embedded PDF narrative (not updated beyond March 2016 data):
ACQI Dashboard April 2011 to March 2016 (xls, 5,967KB)

The Ambulance Services publication by the Health and Social Care Information Centre (now NHS Digital) contains statistics from the KA34 data collection 2004-05 to 2012-13, which are similar but not directly comparable with the AQI data. It also contains AQI data up to 2014-15.

Weekly Category A response times from 7 November 2010 to 29 May 2011 are still available on an archive website: Ambulance Weekly Sitreps.

Rest of UK
Wales ambulance data from the Welsh Government.
Scotland ambulance data in Quality Improvement Indicators documents from the Scottish Ambulance Service.
Northern Ireland ambulance data from the NI Department of Health, Social Services and Public Safety.

Contact Details
For press enquiries, please contact the NHS England press office on 0113 825 0958 or

The team responsible for these data is:
Performance Analysis Team
Finance, Performance and Planning Directorate
NHS England and NHS Improvement
0113 825 4606