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HES-MHMDS Data Linkage Report, Summary Statistics - December 2013, Experimental statistics

Publication date: 09:30 April 25, 2014


This is the latest monthly (December 2013) statistical publication in relation to the linked HES (Hospital Episode Statistics) and MHMDS (Mental Health Minimum Dataset) data.

The two datasets have been linked using specific patient identifiers collected in HES and MHMDS. The linkage allows the datasets to be linked in this manner from 2006-07; however this report focuses on patients who were present in the two datasets in the period April 2013 to December 2013 only.

The bridging file used for this publication was also released on 25 April 2014; it utilises the latest published Provisional (Monthly) HES data and year-to-date MHMDS data relating to the period April 2013 to December 2013.

The HES-MHMDS linkage provides the ability to undertake national (within England) analysis along acute patient pathways for mental health service users' interactions with acute secondary care.

Key Facts

There are approximately 1.56 million individuals who are recorded as being users of adult mental health services (within MHMDS) during April 2013 to December 2013.

  • Of these, approximately 1.49 million MH service users are aged 18 or overĀ¹ and can be linked to HES, of this subset in April 2013 to December 2013:

  • it is estimated that around 475,000 (or 32 per cent) had at least one inpatient episode of care

  • it is estimated that around 959,000 (or 64 per cent) had at least one outpatient appointment

  • it is estimated that around 556,000 (or 37 per cent) had at least one A&E attendance

  • it is estimated that around 1,123,000 (or 76 per cent) accessed at least one hospital service (inpatient episodes of care, outpatients appointment or A&E attendance)

1. While MHMDS can legitimately contain records for under-18's its primary focus is adults accessing the services and therefore is not fully representative of the under-18's age group.


Date Range: 01 April 2013 to 31 December 2013
Geographical coverage: England
Geographical granularity: Country

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