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HES-MHMDS Data Linkage Report, Summary Statistics - April 2014

Publication date: 09:30 August 08, 2014


This is the latest monthly (April 2014) statistical publication in relation to the linked HES (Hospital Episode Statistics) and MHMDS (Mental Health Minimum Data Set) data.

The two data sets have been linked using specific patient identifiers collected in HES and MHMDS. The linkage allows the data sets to be linked in this manner from 2006-07; however, this report focuses on patients who were present in the two data sets in April 2014 only.

The bridging file used for this publication was also released on 08 August 2014; it utilises the latest published provisional (Monthly) HES data and year-to-date MHMDS data relating to April 2014.

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 0.99 million individuals who are recorded as being users of adult mental health services (within MHMDS) during April 2014.

  • Of these, approximately 0.97 million MH service users are aged 18 or overĀ¹ and can be linked
    to HES, of this subset in April 2014:

    • it is estimated that around 59,000 (or 6 per cent) had at least one inpatient episode of

    • it is estimated that around 249,000 (or 26 per cent) had at least one outpatient

    • it is estimated that around 74,000 (or 8 per cent) had at least one A&E attendance

    • it is estimated that around 304,000 (or 31 per cent) accessed at least one hospital
      service (inpatient episodes of care, outpatients appointment or A&E attendance)

Comparing the frequency of access to hospital services (inpatient episodes of care, outpatient appointments or A&E attendances) between MH service users and non-MH service users:

  • Mental Health service users who accessed hospital services during April 2014 did so more
    frequently, approximately 2.4 times as often, as the corresponding Non-MH service user


Date Range: 01 April 2014 to 30 April 2014
Geographical coverage: England
Geographical granularity: Country

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