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East and West Kent NHS Hospitals Trust: Clostridium

Volume 467: debated on Thursday 22 November 2007

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. (166616)

[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.

Mandatory surveillance of Clostridium difficile was introduced in 2004 for patients aged 65 and over and has been extended to all patients aged two and over from April this year.

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:

www.hpa.org.uk/infections/topics_az/hai/Mandatory_Results.htm

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

Dartford and Gravesham NHS Trust

167

1.74

130

1.36

211

2.20

East Kent Hospitals NHS Trust

638

1.97

705

2.19

528

1.64

Maidstone and Tunbridge Wells NHS Trust

484

3.27

464

3.14

545

3.69

Medway NHS Trust

246

2.29

251

2.34

225

2.10

Note:

Data are provisional.

Source:

Health Protection Agency.

The numerator used is the number of Clostridium difficile reports for each trust for each year (January to December).

The denominator used is based on the total bed days for patients 65 years and over for January to December 2004 for each trust as derived from the Hospital Episode Statistics data.

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.