National Chlamydia Screening Programme

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

January – December 2013

CTAD TeamHIV & STI Department Centre for Infectious Disease Surveillance and Control

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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.

2 Public Health England: 2013 NCSP Slide Set V 1.0 18/09/2014

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.

3

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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

4

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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

5 V 1.0 18/09/2014Public Health England: 2013 NCSP Slide Set

Chlamydia testing data for 15-24 year olds Diagnosis rate by PHE centre area, England

January - December 2013

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0

500

1000

1500

2000

2500

3000

Dia

gn

osi

s ra

te

Diagnosis rate* PHOF diagnosis rate indicator (2300)*

*Rates per 100,000 population aged 15 - 24

Chlamydia testing data for 15-24 year olds Diagnosis rate by gender, PHE centre area, England

January - December 2013

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0

500

1000

1500

2000

2500

3000

3500

LondonSouth Midlands and

Hertfordshire

East Midlands

Anglia and Essex

West Midlands

Cheshire andMerseyside

Cumbria andLancashire

Greater Manchester

North East

Yorkshire and Humber

Avon, Gloucestershireand Wiltshire

Devon, Cornwall andSomerset

Wessex

Kent, Surrey andSussex

Thames Valley

ENGLAND

Females diagnosis rate* Males diagnosis rate*

Total diagnosis rate* PHOF diagnosis rate indicator (2300)*

*Rates per 100,000 population aged 15 - 24

Chlamydia testing data for 15-24 year oldsCoverage, proportion of positive tests and diagnosis rate by

PHE centre area, England2012 and 2013

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0

500

1000

1500

2000

2500

3000

0

5

10

15

20

25

30

35

40

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

2012

2013

Angliaand

Essex

Avon,Gloucestershire

andWiltshire

Cheshireand

Merseyside

Cumbriaand

Lancashire

Devon,Cornwall

and Somerset

EastMidlands

GreaterManchester

Kent,Surrey

and Sussex

London NorthEast

SouthMidlands

andHertfordshire

ThamesValley

Wessex WestMidlands

Yorkshireand

Humber

England

Dia

gnos

is r

ate*

Pro

port

ion

of p

ositi

ve t

ests

and

cov

erag

e

GUM coverage Community coverage Proportion of tests positive Diagnosis rate PHOF diagnosis rate indicator*

*Rates per 100,000 population aged 15 - 24

Chlamydia testing data for 15-24 year oldsCoverage by gender, PHE centre area, England

January - December 2013

V 1.0 18/09/2014 Public Health England: 2013 NCSP Slide Set

34.7%

26.5%

37.6%

32.5%

31.1%

35.6%

32.7%

38.6%

40.8%

35.4%

36.9%

31.9%

35.6%

32.4%

32.6%

36.8%

15%

11%

19%

13%

13%

16%

15%

15%

22%

14%

12%

12%

16%

13%

13%

18%

50% 40% 30% 20% 10% 0% 10% 20% 30% 40% 50%

ENGLAND

Thames Valley

East Midlands

Anglia and Essex

West Midlands

Cheshire and Merseyside

Cumbria and Lancashire

Greater Manchester

North East

Yorkshire and Humber

Avon, Gloucestershire and Wiltshire

Devon, Cornwall and Somerset

Wessex

Kent, Surrey and Sussex

South Midlands and Hertfordshire

London

Population coverage (%)

Males Females

Chlamydia testing data for 15-24 year oldsProportion of positive tests by gender

PHE centre area and England January - December 2013

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7.6%

6.9%

7.7%

6.7%

8.3%

7.6%

8.6%

8.2%

7.8%

8.0%

7.1%

7.7%

6.3%

7.0%

7.8%

7.4%

9.2%

8.2%

7.9%

8.6%

9.7%

9.1%

10.0%

10.3%

8.8%

11.0%

10.0%

10.8%

7.6%

8.5%

10.7%

8.6%

12% 10% 8% 6% 4% 2% 0% 2% 4% 6% 8% 10% 12%

ENGLAND

Thames Valley

East Midlands

Anglia and Essex

West Midlands

Cheshire and Merseyside

Cumbria and Lancashire

Greater Manchester

North East

Yorkshire and Humber

Avon, Gloucestershire and Wiltshire

Devon, Cornwall and Somerset

Wessex

Kent, Surrey and Sussex

South Midlands and Hertfordshire

London

Porportion of positive tests (%)

Males Females

Chlamydia testing data for 15-24 year oldsCoverage and diagnosis rate by gender, PHE centre area, England

January - December 2013

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0

500

1000

1500

2000

2500

3000

3500

0%

5%

10%

15%

20%

25%

30%

35%

40%

45%

London SouthMidlands

andHertfordshire

East Midlands Angliaand

Essex

West Midlands Cheshireand

Merseyside

Cumbriaand

Lancashire

GreaterManchester

NorthEast

Yorkshireand

Humber

Avon,Gloucestershire

andWiltshire

Devon,Cornwall

andSomerset

Wessex Kent,Surrey

andSussex

ThamesValley

ENGLAND

Dia

gnos

is r

ate

*

Co

vera

ge (

%)

Coverage Males Coverage Females DR Males DR Females PHOF diagnosis rate Indicator (2300)*

*Rates per 100,000 population aged 15 - 24

Chlamydia testing data for 15-24 year oldsCoverage and diagnosis rate by age group

PHE centre area, England January- December 2013

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0

500

1000

1500

2000

2500

0%

5%

10%

15%

20%

25%

30%

35%

40%

45%

50%

London South Midlandsand

Hertfordshire

East Midlands Anglia andEssex

West Midlands Cheshire andMerseyside

Cumbria andLancashire

GreaterManchester

North East Yorkshire andHumber

Avon,Gloucestershire

and Wiltshire

Devon,Cornwall and

Somerset

Wessex Kent, Surreyand Sussex

Thames Valley ENGLAND

Dia

gn

osi

s ra

te*

Co

vera

ge

(%

)

Coverage 15-19 year olds Coverage 20-24 year olds Diagnosis rate* 15-19 year olds Diagnosis rate* 20-24 year olds

*Rates per 100,000 population aged 15 - 24

Chlamydia testing data for 15-24 year oldsDiagnosis rate by gender, age group and PHE centre area, England

January - December 2013

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0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

Angliaand

Essex

Avon,Gloucestershire

andWiltshire

Cheshireand

Merseyside

Cumbriaand

Lancashire

Devon,Cornwall

andSomerset

EastMidlands

GreaterManchester

Kent,Surrey

andSussex

London NorthEast

SouthMidlands

andHertfordshire

ThamesValley

Wessex WestMidlands

Yorkshireand

Humber

England

Dia

gn

osi

s ra

te p

er

10

0,0

00

Po

pu

latio

n

PHE Centre area

Males 15-19 years Males 20-24 years Females 15-19 years Females 20-24 years

Chlamydia testing data for 15-24 year oldsDiagnosis rate by UTLA in London and England

January - December 2013

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2300 - 2999

Diagnosis rate per 100,000 population aged 15 -24

min - 999

1000 - 1999

2000 - 2299

3000 - max

Chlamydia testing data for 15-24 year oldsCoverage by UTLA in London and England

January – December 2013

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Coverage

<20%

20% - 24%

25% - 29%

30% - 34%

35% - 39%

>= 40%

Chlamydia testing data for 15-24 year oldsTests by testing venue, England

January - December 2013

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545,626 (32%)

299,312 (17%)312,687 (18%)

18,932 (1%)

20,626 (1%)

47,451 (3%)

478,214 (28%)GUM

CSHS

GP

Pharmacy

TOP

Not Known

Other

Chlamydia testing data for 15-24 year oldsTests by testing venue and gender, England

January - December 2013

V 1.0 18/09/2014 Public Health England: 2013 NCSP Slide Set

FemalesMales

337,576 (28.7%)

220,232 (18.7%)

259,744 (22.1%)

13,784 (1.2%)

20,188 (1.7%)

35,252 (3.0%)

290,229 (24.7%)

GUM

CSHS

GP

Pharmacy

TOP

Unknown

Other

207,981 (39.1%)

75,059 (14.1%)

51,486(9.7%)

5,100 (1.0%)

382 (0.1%)

11,950 (2.2%)

179,470 (33.8%)

Chlamydia testing data for 15-24 year oldsProportion of tests by testing venue and PHE Centre area, England

January - December 2013

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0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

London South Midlandsand

Hertfordshire

East Midlands Anglia andEssex

West Midlands Cheshire andMerseyside

Cumbria andLancashire

GreaterManchester

North East Yorkshire andHumber

Avon,Gloucestershire

and Wiltshire

Devon,Cornwall and

Somerset

Wessex Kent, Surreyand Sussex

Thames Valley England

Pro

port

ion

of te

sts

PHE Centre area

Not Known

Other

GUM

TOP

Pharmacy

GP

CSHS

Chlamydia testing data for 15-24 year oldsProportion of positive tests by testing venue and gender, England

January - December 2013

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0%

2%

4%

6%

8%

10%

12%

14%

GUM CSHS GP Pharmacy ToP Other Not Known

Pro

po

rtio

n o

f po

sitiv

e t

est

s

Testing venue

Males Females