Chlamydia Testing Activity Data Set
Enables comprehensive collection of robust data from laboratories on all chlamydia testing carried out in England, in order to estimate population screening coverage rates at local level.
About this standard
- Publisher
- NHS England
- Also known as
- Also known as CTAD.
- Reference code
- SCCI1538 Amd 13/2014
- Publication date
- 17/12/2014
- Status
- Active
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Active. Active standards are stable, maintained and have been approved, assured or endorsed for use by qualified bodies.
Deprecated Deprecated standards are available for use and are maintained, but are being phased out, so new functionality will not be added.
Retired standards Retired standards are not being maintained or supported and should not be used.
- Standard type
- Collections
- Information standards
Show definitions of standard types
Collections. A Collection is a systematic gathering of a specified selection of data or information for a particular stated purpose from existing records held within health and care systems and electronic devices.
Extractions. An extraction is a type of collection that is pulled from an operational system by the data controller and transmitted to the receiver without additional processing or transcription by the sender.
Information standards. Information standards are agreed ways of doing something, written down as a set of precise criteria so they can be used as rules, guidelines, or definitions.
Technical Standards and specifications. Technical standards and specifications specify how to make information available technically including how the data is structured and transported.
- Collection level
Record level
- Frequency
Dataset publication or collection occurs every three months.
- Contact point
Link to standard
- Documentation
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(opens in new tab)
- Applies to
- All NHS commissioned chlamydia tests from laboratories within England
- Genitourinary medicine clinic services (Level 3 sexual health services)
- Other Dept. of Health-commissioned sexual health services (Level 2/Enhanced sexual health services [ESRH])
- All other healthcare settings where testing/screening for chlamydia is carried out, including GP practices and pharmacies
- Prisons, educational establishments, community outreach venues, youth services, etc. which carry out chlamydia screening
- Associated medias
- Chlamydia Testing Activity Data Set Chlamydia Surveillance System website Guidance on the collection and reporting of data for CTAD, the surveillance system for all chlamydia tests done in England.
- Chlamydia Testing Activity Data Set Chlamydia Surveillance System website
- Effective from
- 01/05/2015
Topics and care settings
- Topic
- Adult
- Child
- Data definitions and terminologies
- Health
- Reference data
- Tests and diagnostics
- Care setting
- Community health
- GP / Primary care
- Hospital
- Pharmacy
- Prison
- School
Dependencies and related standards
- Dependencies
No known dependencies.
- Related standards
Review Information
- Senior Responsible Officer
Emma Hollis, Public Health England.
Legal basis and endorsements
- Legal authority
Section 250 of the Health and Social Care Act 2012
This information standard is published under section 250 of the Health and Social Care Act 2012
More information
About this change
- Addition of the code “internet” to the “testing_service_type”. This will allow for better understanding of screening practices across England. It will also allow the “testing_service_type” variable to be validated against local data for accuracy.
- Removal of the redundant “PCT_Testing Service” field. This is necessary as it is important that a mandatory dataset only collects information that is of use. As the Primary Care Trust (PCT) geography is now disbanded it is of no use.
- Addition of the new variable “Venue_code”. This will allow an improvement in:
- Data quality – the venue_code variable will be populated with a site specific code to identify where the chlamydia test was taken/picked up. These codes are assigned to sites by Organisation Data Service (ODS). We will be able to use this information to validate the quality of the testing_service_type field.
- Data accuracy – Sexual Health or Genitourinary Medicine (GUM) clinics do not provide patient postcode of residence data to laboratories and therefore it is not possible to attribute GUM tests submitted to CTAD to a local authority. The change will allow CTAD data to be cross referenced to the Genitourinary Medicine Clinic Activity Dataset (GUMCAD) chlamydia data in order to allocate a patient local authority. 4) Update of the “Gender” field to reflect the latest attributes for Gender, Phenotypic or Genotypic sex in the NHS Data Model and Dictionary Service.
Page last updated: 03 May 2024