Data for sexually transmitted infections (STIs) diagnosed in a genitourinary medicine (GUM) clinic are not currently available on a monthly basis. The latest annual data are published in “All new STI episodes seen at GUM clinics in the UK: 1998 to 2007”, a copy of which has been placed in the Library.
In addition to STIs diagnosed in a GUM clinic, the National Chlamydia Screening Programme (NCSP) provides screening to asymptomatic people aged under 25 years of age in England. The NCSP was launched in 2003 when a phased implementation programme started. The following table shows the number of young people between the ages of 13 to 24 screened and diagnosed with Chlamydia each month between 1 April 2004 and 30 September 2008.
Month Total number of Chlamydia screens Total number of confirmed Chlamydia positives April 2004 2,563 288 May 2004 2,870 329 June 2004 3,164 364 July 2004 3,853 480 August 2004 3,870 462 September 2004 4,996 591 October 2004 5,482 569 November 2004 7,418 722 December 2004 5,096 546 January 2005 6,961 739 February 2005 8,013 842 March 2005 9,018 852 April 2005 8,472 884 May 2005 8,269 818 June 2005 7,921 793 July 2005 7,178 753 August 2005 6,856 671 September 2005 8,618 900 October 2005 9,721 977 November 2005 12,987 1,150 December 2005 8,914 832 January 2006 10,793 1,032 February 2006 10,654 1,020 March 2006 12,335 1,173 April 2006 8,866 855 May 2006 11,338 1,048 June 2006 9,925 968 July 2006 10,168 1,072 August 2006 11,159 1,310 September 2006 12,894 1,258 October 2006 14,423 1,546 November 2006 16,553 1,568 December 2006 11,051 1,081 January 2007 18,286 1,805 February 2007 17,911 1,639 March 2007 20,587 1,855 April 2007 17,241 1,662 May 2007 20,941 1,930 June 2007 20,204 1,861 July 2007 20,695 1,998 August 2007 18,958 1,857 September 2007 25,238 2,199 October 2007 30,371 2,627 November 2007 36,726 2,924 December 2007 23,958 1,919 January 2008 37,868 3,167 February 2008 46,947 3,542 March 2008 44,357 3,391 April 2008 45,403 3,730 May 2008 42,002 3,373 June 2008 38,714 3,147 July 2008 39,793 3,321 August 2008 37,836 3,189 September 2008 59,014 4,224 Total 945,449 83,853 Notes: 1. Total number of screens includes all screens done through the NCSP irrespective of result. Therefore please note positivity cannot be calculated using these data presented since the denominator when calculating positivity is based on positive and negative screens only. 2. The data from the NCSP Core Dataset are for Chlamydia screens conducted within the NCSP outside of GUM clinics only. 3. The data presented include all screening tests done through the NCSP, and excludes diagnostic tests and tests of sexual contacts. 4. The data available from the NCSP are the number of screens and not the number of patients screened.