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QOF information is not available for hospital trusts. Hospital Episode Statistics (HES) are available and give the number of finished consultant episodes in which the patient had a primary or secondary diagnosis of Alzheimers disease, shown in table 2.
|Table 2: Number of finished consultant episodes in which the patient had a primary or secondary diagnosis of Alzheimers disease (International Classification of Diseases: ICD-10 = G30) by selected providers of treatment|
|St. Albans and Hemel Hempstead NHS Trust and Mount Vernon and Watford Hospital||West Hertfordshire Hospitals NHS Trust|
1. West Hertfordshire Hospitals NHS Trust was set up in 2000-01 by merging St. Albans and Hemel Hempstead NHS Trust and RQL Mount Vernon and Watford Hospital. Therefore figures prior to 2000-01 were provided as the total of RPW and RQL.
2. Numbers provided are for finished consultant episodes and for cases for patients admitted to NHS hospitals only. They do not represent the number of people as one person can have more than one episode during the year. They also do not represent the prevalence of people with Alzheimers disease.
3. A finished consultant episode (FCE) is defined as a period of admitted patient care under one consultant within one healthcare provider. FCEs are counted against the year in which the FCE finishes. Please note that the figures do not represent the number of patients, as a person may have more than one episode of care within the year.
4. Primary diagnosis is the first of up to 14 (seven prior to 2002-03) diagnosis fields in the Hospital Episode Statistics (HES) data set and provides the main reason why the patient was in hospital.
5. Secondary diagnoses, as well as the primary diagnosis, there are up to 13 (six prior to 2002-03) secondary diagnosis fields in Hospital Episode Statistics (HES) that show other diagnoses relevant to the episode of care.
6. Number of episodes in which the patient had a (named) primary diagnosis: these figures represent the number of episodes where the diagnosis was recorded in the primary diagnosis field in a Hospital Episode Statistics (HES) record.
7. Number of episodes in which the patient had a (named) primary or secondary diagnosis: these figures represent the number of episodes where the diagnosis was recorded in any of the 14 (seven prior to 2002-03) primary and secondary diagnosis fields in a Hospital Episode Statistics (HES) record. Each episode is only counted once in each count, even if the diagnosis is recorded in more than one diagnosis field of the record.
8. Small numbers: due to reasons of confidentiality, figures between one and five have been suppressed and replaced with * (an asterisk). Where it was possible to identify numbers from the total due to a single suppressed number in a row or column, an additional number (the next smallest) has been suppressed in order to protect patient confidentiality.
9. Data Quality: Hospital Episode Statistics (HES) are compiled from data sent by more than 300 NHS trusts and primary care trusts (PCTs) in England. Data are also received from a number of independent sector organisations for activity commissioned by the English NHS. The NHS Information Centre for health and social care liaises closely with these organisations to encourage submission of complete and valid data and seeks to minimise inaccuracies and the effect of missing and invalid data via HES processes. While this brings about improvement over time, some shortcomings remain.
10. Assessing growth through time: HES figures are available from 1989-90 onwards. During the years that these records have been collected by the NHS there have been ongoing improvements in quality and coverage. These improvements in information submitted by the NHS have been particularly marked in the earlier years and need to be borne in mind when analysing time series.
11. Some of the increase in figures for later years (particularly 2006-07 onwards) may be due to the improvement in the coverage of independent sector activity.
12. Changes in NHS practice also need to be borne in mind when analysing time series. For example, a number of procedures may now be undertaken in outpatient settings and may no longer be accounted for in the HES data. This may account for any reductions in activity over time.
Hospital Episode Statistics (HES), the NHS Information Centre for health and social care
Mr. Stephen O'Brien: To ask the Secretary of State for Health pursuant to the answer of 6 October 2008, Official Report, columns 447-48W, on the National Institute for Health and Clinical Excellence (NICE), for what reasons final NICE guidance on MabThera (rituximab) for untreated stage III or IV follicular lymphoma was issued before the date on which NICE started its appraisal; and for what reasons the appraisal of Tarceva (erlotinib) in lung cancer (non-small cell) will begin four years after its referral to NICE. 
Dawn Primarolo: There were typographical errors in the response to the earlier question. These errors have been corrected in the following table, which has also been updated to reflect the fact that final guidance for one of the appraisals has now been published.
|Topic||Work programme||Published/ongoing||Date of marketing authorisation( 1)||Referral date( 2)||Date of final NICE guidance||Start of NICE appraisal( 3)|
|(1) Date of marketing authorisation by European Medicines Agency (EMEA).|
(2) Topics before the 13 work programme were originally referred to NICEs Multiple Technology Appraisal (MTA) programme and were transferred to the STA programme when it was introduced in August 2006. The date provided is the date the topic was originally referred to NICE as a Multiple Technology Appraisal.
(3) The date NICE commenced work on the appraisal. NICE will also have carried out scoping work for the appraisal before this date.
(4) Guidance has been reviewed since the original guidance was published. The date of final guidance and date NICE started work on the appraisal refer to the review.
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