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New data show rates of common NHS operations and resulting patient benefit

August 14, 2014: The Health and Social Care Information Centre has published information about four common NHS operations, and patient feedback about the health outcomes of these operations.

The Patient Reported Outcome Measures (PROMs) programme focuses on four procedures - knee replacements; varicose vein surgery; hip replacements; and groin hernia surgery and reports on results at provider, Clinical Commissioning Group (CCG) and national level.

Patients complete PROMs questionnaires about their health before and following surgery2, so that the extent they feel they have benefited can be assessed.

This is the fourth time the annual PROMS data have been published and overall, the proportion of patients reporting improvements in their conditions and the average health gains3 reported, are in line with previous years for all procedures.

These data cover the period from April 1 2012 to 31 March 2013.


Notes to editors

1. The Health and Social Care Information Centre (HSCIC) was established on April 1 2013 as an Executive Non Departmental Public Body (ENDPB). It is England's trusted data source, delivering high quality information and IT systems to drive better patient services, care and outcomes. Its work includes publishing more than 220 statistical publications annually; providing a range of specialist data services; managing informatics projects and programmes and developing and assuring national systems against appropriate contractual, clinical safety and information standards.

2. Before a patient undergoes one of the four PROMs procedures, the provider should offer the patient a pre-operative PROMs questionnaire for completion between the date that the patient being passed fit for surgery and the surgery taking place. Completion of the PROMs questionnaire is voluntary for the patient and their consent to participate must be granted for the data to be processed and used. Post-operative questionnaires are sent out to patients three months (for groin hernia and varicose vein surgery) or six months (for hip and knee replacement surgery) after the procedure date recorded on their hospital record. For patients whose pre-operative questionnaire is not linked to a hospital record, the three- or six-month count is started 12 weeks after the scan date of the pre-operative questionnaire. The patient can then return the questionnaire at any time thereafter.

3. Health gain is the difference between patients' pre- and post-operative scores on the various health measures collected through the PROMs programme (see the Introduction section of the report for more information). Using this information, average health gain can then be calculated for different procedures, and analysed in a range of ways.

4. The full report can be viewed at:

5. For media enquiries or interview requests please contact the press office on 0300 303 3888 or

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