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About SSNAP > SSNAP Clinical Audit > Data Collection

Data Collection

Data Collection

Since SSNAP (clinical) started in January 2013 more than 500,000 stroke patient records have been analysed and reported on. Over 90% of expected stroke cases are being entered to SSNAP by providers in England, Wales and Northern Ireland with case ascertainment in Northern Ireland now steadily improving. This means that the data presented in SSNAP Reports are complete and robust. 

Developing a Core Dataset 

A core, minimum dataset was developed by the Intercollegiate Stroke Working Party (ICSWP) in collaboration with key stakeholders. Prospective data were collected via a secure web-based tool provided by Net Solving Ltd. Security and confidentiality are maintained through the use of passwords and a person specific registration process.  The data items collected by SSNAP include acute care processes and interventions, assessments and rehabilitation, and longer term care provision. The core dataset is available to download here.

Standardising data interpretation

Detailed help notes are provided to ensure standard interpretation of the dataset questions across all participants. Extensive support in the form of FAQ’s, user guides and videos are available online via Zendesk software (see support icon on bottom right of SSNAP website).

Eligibility Criteria

Patients: All patients with a primary diagnosis of stroke coded as I-61, I-63, I-64 should be submitted to SSNAP. The minimum age for patient submission to SSNAP is 16.
Stroke services: Any stroke service in England, Wales or Northern Ireland which treats at least 10 patients per year are eligible to participate in SSNAP. All acute hospitals in these countries that provide stroke care are actively submitting data to SSNAP with increasing numbers of post-acute care providers registering and participating in SSNAP.

Data collection timeline

SSNAP is a prospective, continuous audit. This means that data collection is ongoing until at least 31 March 2021 when the current contract for running the national stroke audit ends. 

Data collection deadlines

SSNAP imposes deadlines for the submission of data over specific time periods to enable these data to be analysed and reported on. SSNAP reports across quarterly, six monthly and annual (April-March) periods. Upon data entry deadline dates all patient data for the previous period is required to be submitted and locked by participating teams. If records are locked this means that they have been clinically signed off and are therefore ready for analysis. The data locking deadlines for the upcoming reporting periods are provided in the table below.

Inpatient teams
Reporting period Data entry deadline Results available to teams Results publically available*
July-September 2019 4 November 2019 December 2019 January 2020
October-December 2019 3 February 2020 March 2020 April 2020
January-March 2020 4 May 2020 June 2020 July 2020
April-June 2020 3 August 2020 September 2020 October 2020
*Subject to appropriate sign-off from funders
Non-inpatient teams
Reporting period Data entry deadline Results available to teams Results publically available   
July-December 2019      3 February 2020 March 2020 April 2020
January-June 2020 3 August 2020 September 2020 October 2020
July-December 2020 1 February 2021 March 2021 April 2021

Ambulance trusts
Reporting period Data entry deadline Data published by NHS England on 
April 2019              22 August 2019 12 September 2019
May 2019 23 September 2019 10 October 2019
June 2019 22 October 2019 14 November 2019
July 2019 22 November 2019 12 December 2019

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