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|Rates per 100,000 of population|
|SHA of Residence||2006-07||2005-06||2004-05||2003-04||2002-03||2001-02||2000-01||1999-2000||1998-99||1997-98|
Figures have not been adjusted for shortfalls in data (i.e. the data are ungrossed).
Finished admission episodes
A finished admission episode is the first period of inpatient care under one consultant within one healthcare provider. Finished admission episodes are counted against the year in which the admission episode finishes. Please note that admissions do not represent the number of inpatients, as a person may have more than one admission within the year.
* Cause Code - Gunshot Wounds
The cause code is a supplementary code that indicates the nature of any external cause of injury, poisoning or other adverse effects. HES has used the following ICD-10 external cause codes when referring to gunshot wounds
W32.- Handgun discharge
W33.- Rifle, shotgun and larger firearm discharge
W34.- Discharge from other and unspecified firearms
X72- Intentional self-harm by handgun discharge
X73- Intentional self-harm by rifle, shotgun and larger firearm discharge
X74- Intentional self-harm by other and unspecified firearm discharge
X93- Assault by handgun discharge
X94- Assault by rifle, shotgun and larger firearm discharge
X95- Assault by other and unspecified firearm discharge
Y22.- Handgun discharge, undetermined intent
Y23.- Rifle, shotgun and larger firearm discharge, undetermined intent
Y24- Other and unspecified firearm discharge, undetermined intent
Y35.0 Legal intervention involving firearm discharge
Y36.4 War operations involving firearm discharge and other forms of conventional warfare.
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.
PCT/SHA data quality
PCT 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 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.
Assessing growth through time
HES figures are available from 1989-90 onwards. The quality and coverage of the data have improved over time. 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.
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.
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.
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