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Dr. Fox: To ask the Secretary of State for Health what the proposed Drug Treatment Agency allocation is for (a) Bristol and (b) north Somerset for each year covered by comprehensive spending review. 
Hugh Robertson: To ask the Secretary of State for Health what the infection rates were for Clostridium difficile in the East and West Kent NHS Hospitals Trust in each of the last three years; and on what basis these rates are calculated. 
[holding answer 20 November2007]: The mandatory surveillance system operated by the Health Protection Agency provides data on the number of reports of Clostridium difficile (C. difficile) infection
(CDI). All acute national health service trusts in England are obliged to report all cases of CDI processed by their laboratories and the data is published at trust level.
The data provided in the following table are for the acute NHS trusts that fall within the Kent region. This information and any further information on the number of CDIs for NHS acute trusts is available at:
|Number of reported cases of Clostridium difficile infections|
|Patients >65 years|
|January to December 2004||January to December 2005||January to December 2006|
|Trust||Number of Clostridium difficile reports||Rate per 1,000 bed days||Number of Clostridium difficile reports||Rate per 1,000 bed days||Number of Clostridium difficile reports||Rate per 1,000 bed days|
Data are provisional.
Health Protection Agency.
The number of bed days was calculated from the total length of consultant episodes for patients 65 years and over for that trust during the period. The number was adjusted to take account of the leap year in 2004.
The best available data on the number of reports of Clostridium difficile infections are for patients aged 65 and over and come from the mandatory surveillance scheme run by the Health Protection Agency. The following table shows data for East Sussex Hospital NHS Trust from January 2004 to June 2007.
|Number of C. difficile reports for patients aged 65 years and over|
Health Protection Agencyprovisional data.
Dr. Kumar: To ask the Secretary of State for Health what his assessment is of the effectiveness of traditional coronary heart disease drugs on (a) women and (b) men; and if he will make a statement. 
Dawn Primarolo: Medicinal products licensed for treatment of coronary heart disease are assessed for safety, efficacy and quality, in both men and women. Post marketing surveillance continues the monitoring of safety signals after approval for use of these products in a wider population. Products currently approved for treatment of coronary heart disease are safe and effective in men and women when used in accordance with their approved prescribing recommendations.
Mr. Cash: To ask the Secretary of State for Health how many (a) angioplasty and (b) revascularisation procedures were carried out in (i) Stoke, (ii) south Staffordshire, (iii) north Staffordshire, (iv) Telford and Wrekin and (v) Shropshire county primary care trusts in each year since 2003, broken down by type. 
Dawn Primarolo: The information requested is shown in the table. The source of the data is the hospital episode statistics (HES) held by the information centre for health and social care (IC). The data are provided for five primary care trusts (PCTs), in their commissioning, rather than provider of treatment role.
Rather than grouping procedures under the headings angioplasty and revascularisation the 1C has
provided a more detailed break-down of the operative procedures that sit under these headings so there is no confusion as to what has been included and counted. Angioplasty has been classed as those codes between K49-K50 and revascularisation has been classed as those codes between K40-K46.
|Selected operative procedures||North Staffordshire PCT||Shropshire County PCT||South Staffordshire PCT||Stoke on Trent PCT||Telford and Wrekin PCT|
All operations count of mentionsThese figures represent a count of all mentions of an operative procedure in any of the 12 (four prior to 2002-03) operative procedure fields in the HES data set. Therefore, if a operative procedure is mentioned in more than one operative procedure field during an episode, all operative procedure are counted.
Finished Consultant Episode (FCE)An FCE is defined as a period of admitted patient care under one consultant within one healthcare provider. Episodes do not represent the number of patients, as a person may have more than one episode of care within the year.
Main operationThe main operation is the first recorded operation in the HES data set and is usually the most resource intensive procedure performed during the episode. It is appropriate to use main operation when looking at admission details, e.g. time waited, but the figures for all operations count of episodes give a more complete count of episodes with an operation.
Secondary procedureAs well as the main operative procedure, there are up to 11 (three prior to 2002-03) secondary operation fields in HES that show secondary or additional procedures performed on the patient during the episode of care.
PCT and strategic health authority (SHA) data qualityPCT and SHA data were added to historic data-years in the HES database using 2002-03 boundaries, as a one-off exercise in 2004. The quality of the data on PCT of treatment and SHA of treatment is poor in 1996-97, 1997-98 and 1998-99, with over a third of all finished episodes having missing values in these years. Data quality of PCT of general practitioner (GP) practice and SHA of GP practice in 1997-98 and 1998-99 is also poor, with a high proportion missing values where practices changed or ceased to exist. There is less change in completeness of the residence-based fields over time, where the majority of unknown values are due to missing postcodes on birth episodes. Users of time series analysis including these years need to be aware of these issues in their interpretation of the data.
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