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|Count of finished consultant episodes for St. Albans and Hemel Hempstead NHS Trust (RPW) and Mount Vernon and Watford NHS Trust (RQL) by main speciality for years 1999-2000 to 1996-97. NHS Hospitals England|
|Report title Main Speciality code||Main speciality||RPW||RQL||RPW||RQL||RPW||RQL||RPW||RQL|
1. Data Quality
Hospital Episode Statistics (HES) are compiled from data sent by over 300 NHS trusts and primary care trusts (PCTs) in England. The 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.
2. 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. 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 in the HES data. This may account for any reductions in activity over time.
An FCE is defined as a period of admitted patient care under one consultant within one health care provider. 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.
Care is needed when analysing HES data by specialty, or by groups of specialties (such as Acute). Trusts have different ways of managing specialties and attributing codes so it is better to analyse by specific diagnoses, operations or other recorded information. Trusts may change the way they manage speciality codes through time. Speciality code 420For the period 2001/02 no data was received from the trust for this speciality. This has been investigated with the trust but no conclusive cause has been found.
5. Ungrossed Data
Figures have not been adjusted for shortfalls in data (i.e. the data are ungrossed).
6. Low Numbers
Due to reasons of confidentiality, figures between 1 and 5 have been suppressed and replaced with an * (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 smallest number have been suppressed in order to protect.
Hospital Episode Statistics (HES), The Information Centre for health and social care
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