Data providers and dates of data availability

This page gives details of the various data providers for linked hospital inpatient, cancer and death records, including the data coding used and the period for which data is available.

The censoring date for each data provider is the date up to when UK Biobank estimate that data received from that provider is complete. The censoring dates below have been calculated using the following rule:

The censoring date is the last day of the month for which the number of records is greater than 90% of the mean of the number of records for the previous three months.

The censoring dates are not applied by UK Biobank to the data sent to researchers. Datasets will always contain the latest data regardless of censoring dates, and may include incomplete data after the dates below. These dates are intended for guidance only. Once a researcher has received their data, they should censor outcomes based on their own research protocol.

Hospital inpatient data

Hospital Admissions (Inpatients)

Data Provider

International Classification of Diseases (ICD)

Classification of Interventions and Procedures (OPCS)

Period of data currently available

Censoring date

ICD9

ICD10

OPCS3

OPCS4

Hospital Episode Statistics for England (HES) NHS Digital 1996 onwards 1996 onwards 1996 onwards 31 March 2017
Scottish Morbidity Record (SMR) Information and Statistics Division (ISD), Scotland 1981 - 1996 1996 onwards 1977 - 1988 1989 onwards 1981 onwards 31 October 2016 *
Patient Episode Database for Wales (PEDW) Secure Anonymised Information Linkage (SAIL), Wales 1999 onwards 1999 onwards 1998 onwards 29 February 2016


* Please note that the Scottish hospital inpatient data does not currently include psychiatric admissions.

Cancer data

Cancer

Data Provider

International Classification of Diseases (ICD)

Period of data currently available

Censoring date

ICD9

ICD10

England & Wales NHS Digital 1979 - 1994 1995 onwards 1971 onwards 31 March 2016
Scotland National Records of Scotland, NHS Central Register 1980 - 1996 1997 onwards 1957 onwards 31 October 2015


Death data

Death

Data Provider

International Classification of Diseases (ICD)

Period of data currently available

Censoring date

ICD9

ICD10

England & Wales NHS Digital 2006 onwards April 2006 onwards 31 January 2018
Scotland Information and Statistics Division (ISD), Scotland 2006 onwards April 2006 onwards 30 November 2016

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