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National Chlamydia Screening Programme. CTAD Team HIV & STI Department Centre for Infectious Disease Surveillance and Control. Chlamydia testing and diagnoses in 15-24 year olds, England January – December 2013. V 1.0 18/09/2014. Notes ❶ ❷ ❸.

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national chlamydia screening programme

National Chlamydia Screening Programme

  • CTAD Team
  • HIV & STI Department
  • Centre for Infectious Disease Surveillance and Control

Chlamydia testing and diagnoses in 15-24 year olds, England

January – December 2013

V 1.0 18/09/2014

notes
Notes ❶ ❷ ❸
  • Chlamydia activity data published by PHE are based on primary care and community service chlamydia data from Chlamydia Testing Activity Dataset (CTAD), and GUM clinic chlamydia data from GUMCAD.
  • CTAD collects data on all NHS and local authority commissioned chlamydia tests carried out in laboratories in England.
  • Data are presented by local authority of patient residence and aggregated up to PHE centre area and the England total.
  • Data are attributed to local authorities using the patient’s postcode of residence. If this is not provided, other reported location data are used in this order: patient GP postcode; postcode of testing service; patient GP code; NCSP clinic code.
  • Accurate attribution of tests by local authority is only possible if a valid postcode of residence is submitted to PHE. The proportion of records with a valid patient postcode has increased from 66% in 2012 to 74% in 2013.

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

notes1
Notes ❶ ❷ ❸
  • CTAD data from GUM clinics reported by laboratories has been removed and replaced with GUM clinic data sourced from GUMCAD. This is because, unlike CTAD sourced GUM data, GUMCAD data contains information on patient area of residence.
  • This data substitution relies on accurate coding of testing service type by laboratories reporting CTAD data. Inaccurate coding may lead to over or under counting of tests.
  • Data includes chlamydia tests carried out on people aged 15 to 24 years inclusive.
  • Data are cleaned and de-duplicated so one test per patient within a 42 day window is counted.
  • Data includes tests where sex is male, female, and unknown/unspecified.
  • Data includes all screening tests, diagnostic tests and tests on contacts.

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

notes2
Notes ❶ ❷ ❸
  • Data includes chlamydia tests and diagnoses among people accessing services located in England who are also resident in England.
  • The England total excludes tests which did not have sufficient location information to be attributed to a local authority of residence.
  • Data represents the number of tests and diagnoses reported, and not the number of people tested or diagnosed.
  • Data presented are based on tests with confirmed positive and negative results only. Tests with equivocal, inhibitory and insufficient results have been excluded as most people with these results are retested.
  • Rates are calculated using ONS population estimates based upon the 2011 census. Rates for 2013 have been calculated using 2012 population estimates.

For further information about the NCSP programme please follow this link:

http://www.chlamydiascreening.nhs.uk/ps/data.asp

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

glossary
Glossary
  • CTAD: Chlamydia Testing Activity Dataset
  • CSHS: Contraception & Sexual Health Services
  • DR: Diagnosis rate
  • GP: General Practice
  • GUM: Genito-urinary medicine
  • NCSP: National Chlamydia Screening Programme
  • ONS: Office for National Statistics
  • PHE: Public Health England
  • PHOF: Public Health Outcomes Framework
  • ToP: Termination of Pregnancy
  • STIs: Sexually transmitted infections
  • UTLA: Upper Tier Local Authority

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide6

Chlamydia testing data for 15-24 year olds

Diagnosis rate by PHE centre area, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide7

Chlamydia testing data for 15-24 year olds

Diagnosis rate by gender, PHE centre area, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide8

Chlamydia testing data for 15-24 year olds

Coverage, proportion of positive tests and diagnosis rate by PHE centre area, England

2012 and 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide9

Chlamydia testing data for 15-24 year olds

Coverage by gender, PHE centre area, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide10

Chlamydia testing data for 15-24 year olds

Proportion of positive tests by gender

PHE centre area and England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide11

Chlamydia testing data for 15-24 year olds

Coverage and diagnosis rate by gender, PHE centre area, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide12

Chlamydia testing data for 15-24 year olds

Coverage and diagnosis rate by age group

PHE centre area, England

January- December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide13

Chlamydia testing data for 15-24 year olds

Diagnosis rate by gender, age group and PHE centre area, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide14

Chlamydia testing data for 15-24 year olds

Diagnosis rate by UTLA in London and England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide15

Chlamydia testing data for 15-24 year olds

Coverage by UTLA in London and England

January – December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide16

Chlamydia testing data for 15-24 year olds

Tests by testing venue, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide17

Chlamydia testing data for 15-24 year olds

Tests by testing venue and gender, England

January - December 2013

Males

Females

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide18

Chlamydia testing data for 15-24 year olds

Proportion of tests by testing venue and PHE Centre area, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014

slide19

Chlamydia testing data for 15-24 year olds

Proportion of positive tests by testing venue and gender, England

January - December 2013

Public Health England: 2013 NCSP Slide Set

V 1.0 18/09/2014