National Chlamydia Screening
Programme
Chlamydia testing and diagnoses in 15-24 year
olds, England
January – December 2013
CTAD Team
HIV & STI Department
Centre for Infectious Disease Surveillance and Control
V 1.0 18/09/2014
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
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
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
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
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
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Diagnosis rate by PHE centre area, England
January - December 2013
3000
Diagnosis rate*
PHOF diagnosis rate indicator (2300)*
Diagnosis rate
2500
2000
1500
1000
500
0
*Rates per 100,000 population aged 15 - 24
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Diagnosis rate by gender, PHE centre area, England
January - December 2013
Females diagnosis rate*
Males diagnosis rate*
Total diagnosis rate*
PHOF diagnosis rate indicator (2300)*
London
ENGLAND
3500
South Midlands and
Hertfordshire
3000
Thames Valley
2500
East Midlands
2000
Kent, Surrey and
Sussex
1500
Anglia and Essex
1000
500
Wessex
0
Devon, Cornwall and
Somerset
West Midlands
Cheshire and
Merseyside
Avon, Gloucestershire
and Wiltshire
Cumbria and
Lancashire
Yorkshire and Humber
Greater Manchester
North East
*Rates per 100,000 population aged 15 - 24
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Coverage, proportion of positive tests and diagnosis rate by
PHE centre area, England
2012 and 2013
3000
35
2500
30
2000
20
1500
15
1000
10
Diagnosis rate*
25
500
5
Anglia
Avon,
Cheshire
Cumbria
Devon,
East
and Gloucestershire
and
and
Cornwall
Midlands
Essex
and
Merseyside Lancashire and Somerset
Wiltshire
Greater
Manchester
Kent,
Surrey
and Sussex
London
North
East
South
Midlands
and
Hertfordshire
Thames
Valley
Wessex
West
Midlands
Yorkshire
and
Humber
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
0
2013
0
2012
Proportion of positive tests and coverage
40
England
*Rates per 100,000 population aged 15 - 24
GUM coverage
Community coverage
Public Health England: 2013 NCSP Slide Set
Proportion of tests positive
Diagnosis rate
PHOF diagnosis rate indicator*
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Coverage by gender, PHE centre area, England
January - December 2013
Males
Females
18%
13%
32.6%
South Midlands and Hertfordshire
13%
32.4%
Kent, Surrey and Sussex
16%
Devon, Cornwall and Somerset
31.9%
12%
Yorkshire and Humber
35.4%
22%
North East
40.8%
15%
Cumbria and Lancashire
32.7%
16%
Cheshire and Merseyside
35.6%
13%
West Midlands
31.1%
13%
Anglia and Essex
32.5%
19%
East Midlands
37.6%
11%
Thames Valley
26.5%
15%
20%
Greater Manchester
38.6%
15%
30%
Avon, Gloucestershire and Wiltshire
36.9%
14%
40%
Wessex
35.6%
12%
50%
London
36.8%
ENGLAND
34.7%
10%
0%
10%
20%
30%
40%
50%
Population coverage (%)
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Proportion of positive tests by gender
PHE centre area and England
January - December 2013
Males
Females
8.6%
10.7%
South Midlands and Hertfordshire
7.8%
8.5%
Kent, Surrey and Sussex
7.0%
7.6%
Wessex
6.3%
10.8%
Devon, Cornwall and Somerset
7.7%
10.0%
Avon, Gloucestershire and Wiltshire
7.1%
11.0%
Yorkshire and Humber
8.0%
8.8%
North East
7.8%
10.3%
Greater Manchester
8.2%
10.0%
Cumbria and Lancashire
8.6%
9.1%
Cheshire and Merseyside
7.6%
9.7%
West Midlands
8.3%
8.6%
East Midlands
7.7%
8.2%
Thames Valley
6.9%
9.2%
10%
Anglia and Essex
6.7%
7.9%
12%
London
7.4%
ENGLAND
7.6%
8%
6%
4%
2%
0%
2%
4%
6%
8%
10%
12%
Porportion of positive tests (%)
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Coverage and diagnosis rate by gender, PHE centre area, England
January - December 2013
Coverage Males
Coverage Females
DR Males
DR Females
PHOF diagnosis rate Indicator (2300)*
45%
3500
40%
3000
35%
Coverage (%)
25%
2000
20%
1500
Diagnosis rate*
2500
30%
15%
1000
10%
500
5%
0%
0
London
South
Midlands
and
Hertfordshire
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
Thames
Valley
ENGLAND
*Rates per 100,000 population aged 15 - 24
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Coverage and diagnosis rate by age group
PHE centre area, England
January- December 2013
Coverage 15-19 year olds
50%
Coverage 20-24 year olds
Diagnosis rate* 15-19 year olds
Diagnosis rate* 20-24 year olds
2500
45%
40%
2000
30%
1500
25%
20%
Diagnosis rate*
Coverage (%)
35%
1000
15%
10%
500
5%
0%
0
London
South Midlands East Midlands
and
Hertfordshire
Anglia and
Essex
West Midlands Cheshire and
Merseyside
Cumbria and
Lancashire
Greater
Manchester
North East
Yorkshire and
Avon,
Devon,
Humber
Gloucestershire Cornwall and
and Wiltshire
Somerset
Wessex
Kent, Surrey
and Sussex
Thames Valley
ENGLAND
*Rates per 100,000 population aged 15 - 24
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Diagnosis rate by gender, age group and PHE centre area, England
January - December 2013
4,000
Diagnosis rate per 100,000 Population
3,500
3,000
2,500
2,000
1,500
1,000
500
0
Anglia
and
Essex
Avon,
Gloucestershire
and
Wiltshire
Cheshire
and
Merseyside
Cumbria
and
Lancashire
Devon,
Cornwall
and
Somerset
East
Midlands
Greater
Manchester
Kent,
Surrey
and
Sussex
London
North
East
South
Midlands
and
Hertfordshire
Thames
Valley
Wessex
West
Midlands
Yorkshire
and
Humber
England
PHE Centre area
Males 15-19 years
Public Health England: 2013 NCSP Slide Set
Males 20-24 years
Females 15-19 years
Females 20-24 years
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Diagnosis rate by UTLA in London and England
January - December 2013
Diagnosis rate per 100,000 population aged 15 -24
min - 999
1000 - 1999
2000 - 2299
2300 - 2999
3000 - max
Public Health England: 2013 NCSP Slide Set
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Chlamydia testing data for 15-24 year olds
Coverage by UTLA in London and England
January – December 2013
Coverage
<20%
20% - 24%
25% - 29%
30% - 34%
35% - 39%
>= 40%
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Tests by testing venue, England
January - December 2013
GUM
478,214 (28%)
545,626 (32%)
CSHS
GP
Pharmacy
TOP
47,451 (3%)
Not Known
20,626 (1%)
18,932 (1%)
312,687 (18%)
Public Health England: 2013 NCSP Slide Set
299,312 (17%)
Other
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Tests by testing venue and gender, England
January - December 2013
Males
Females
179,470
(33.8%)
290,229
(24.7%)
GUM
CSHS
35,252 (3.0%)
337,576
(28.7%)
20,188 (1.7%)
207,981
(39.1%)
11,950 (2.2%)
13,784 (1.2%)
Pharmacy
382 (0.1%)
5,100 (1.0%)
GP
51,486
(9.7%)
TOP
259,744
(22.1%)
75,059
(14.1%)
220,232
(18.7%)
Unknown
Other
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Proportion of tests by testing venue and PHE Centre area, England
January - December 2013
100%
Not Known
90%
Proportion of tests
80%
Other
70%
GUM
60%
TOP
50%
40%
Pharmacy
30%
GP
20%
10%
CSHS
0%
London
South Midlands East Midlands
and
Hertfordshire
Anglia and
Essex
West Midlands Cheshire and
Merseyside
Cumbria and
Lancashire
Greater
Manchester
North East
Yorkshire and
Avon,
Devon,
Humber
Gloucestershire Cornwall and
and Wiltshire
Somerset
Wessex
Kent, Surrey
and Sussex
Thames Valley
England
PHE Centre area
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014
Chlamydia testing data for 15-24 year olds
Proportion of positive tests by testing venue and gender, England
January - December 2013
Males
Proportion of positive tests
14%
Females
12%
10%
8%
6%
4%
2%
0%
GUM
CSHS
GP
Pharmacy
ToP
Other
Not Known
Testing venue
Public Health England: 2013 NCSP Slide Set
V 1.0 18/09/2014