Patients undergoing elective inpatient surgery for four common elective procedures (hip and knee replacement, varicose vein surgery and groin hernia surgery) funded by the English NHS are asked to complete questionnaires before and after their operations to assess improvement in health as perceived by the patients themselves.
Extended analyses of the latest finalised data are published three times a year as 'special topics'. The latest, 'Rates of Attrition 2013-14', was published on 12 May 2016.
Update 01/02/2017: This publication has been updated since initial publication in August 2016 in order to rectify a problem with the data discovered within the 'time-series' CSV file contained within the data pack.
Data for the 2013/14 year were found to be incorrect due to being based on an earlier provisional dataset rather than the expected finalised data. It is therefore advised that any analysis undertaken which includes the 2013/14 data be refreshed. All other years' data within the file were correct. All other files, the national level key-facts and the interactive maps included in this publication are unaffected.??