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, spreadsheets and text files:
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

These interactive spreadsheets show Time Series data. Users can select whether to view data for all England, an individual trust, or a region.

Systems Indicators from August 2017 to the latest published month, against specification 20170926 below:
New Ambulance Systems Indicators Time series to 20180430 (XLSX, 232KB)

Clinical Outcome from April 2011 to the latest published month, against specification v1.31 below:
Ambulance Clinical Outcomes Time Series to December 2017 (XLSX, 381KB)

Systems Indicators from April 2011 to March 2018 against specification v1.6 below:
Old Ambulance Systems Indicators Time Series to March 2018 (XLSX, 658KB)

This spreadsheet has data against specification 3.0 below, for the three Trusts that in 2016 started using Categories C1 to C4 instead of Categories A and C:
Category C1 to C4 Response Times, October 2016 to November 2017 (XLSX, 25KB)

CSV Data
These files have the same data as other published spreadsheets, but without any formatting:
New Systems Indicators August 2017 to April 2018 (CSV, 42KB)
Clinical Outcomes April 2011 to December 2017 (CSV, 135KB)
Old Systems Indicators April 2011 to March 2018 (CSV, 211KB)

Note: From February 2015 to February 2017, the Old Systems Indicators for Category A, Red 1 and Red 2 responses are not comparable for all Ambulance Services; for details please read the 8 December 2016 Statistical Note, via the above 2016-17 link.

Data specification
The following documents contain the specification guidance for data suppliers on what NHS England require.
Systems Indicators only, introduced in autumn 2017, following the Ambulance Response Programme review: AQI System Indicators 20170926 (DOCX, 70KB) (Updated 26 September 2017)

Systems Indicators and Clinical Outcomes:
For Trusts using Categories C1 to C4 from October 2016 to autumn 2017:
AQI Guidance v3.0 (DOCX, 113KB)
For Trusts using Red 1 / Red 2 categorisation:
After October 2016: AQI Guidance V1.6 (DOCX, 196KB)
January to October 2016: AQI Guidance V1.4 (DOCX, 202KB)
Up to 4 January 2016: AQI Guidance V1.31 (DOCX, 173KB)
Between versions v1.31 to v3.0, some Systems Indicators definitions change, but Clinical Outcomes definitions are unchanged.

New Clinical Outcomes starting with data for November 2017:
20180412 STEMI and stroke timeliness specification (PDF, 149KB)

Supporting information
This Statement describes the quality of the statistics, along with a revisions policy, and information on user engagement:
AQI Quality Statement 2015 v1.2 (PDF, 356KB)

The following timetable contains dates for data collection and publication:
2017-18-Ambulance-Quality-Indicators-Publication-Timetable (PDF, 27KB) (Updated 30 November 2017)

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

The Association of Ambulance Chief Executives have produced an infographics website using AQI data:

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

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 individual responsible for these data is:
Ian Kay
NHS England, Operational Information for Commissioning (Central)
Room 5E24, Quarry House, Leeds LS2 7UE
0113 825 4606