NCT01569139

Brief Summary

Medical information is increasingly processed electronically. This study will describe the similarities and differences in the data recorded by different databases of electronic healthcare database. These will include the General Practice Research Database (GPRD) and the Myocardial Ischaemia National Audit Project (MINAP) and hospital episode statistics (HES).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
21,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2011

Typical duration for all trials

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2011

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

March 30, 2012

Completed
3 days until next milestone

First Posted

Study publicly available on registry

April 2, 2012

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2014

Completed
Last Updated

October 2, 2015

Status Verified

October 1, 2015

Enrollment Period

3 years

First QC Date

March 30, 2012

Last Update Submit

October 1, 2015

Conditions

Keywords

ValidationConcordanceMyocardial infarctionMyocardial Ischaemia National Audit ProjectGeneral Practice Research DatabaseHospital Episode StatisticsONS mortality

Study Arms (3)

GPRD MI

Myocardial infarction, as identified in the GPRD data.

MINAP MI

Myocardial infarction, as identified in MINAP data.

HES MI

Myocardial infarction, as identified in HES data.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population is comprised of "acceptable" patients registered at those GPRD practices that agreed to the linkage with MINAP and HES, whose practices are "up to standard" according to GPRD criteria. Practices taking part in the GPRD are chosen to be representative of UK practices, and 98% of people in the UK are registered with a GP. Therefore the GPRD should be a representative sample of the UK population.

You may qualify if:

  • Aged 18+
  • Patients in GPRD practices which are deemed "up to standard" by GPRD criteria
  • Patients in GPRD whose practice agreed to be linked to the MINAP and HES datasets.
  • Patients whose records are deemed "acceptable" by GPRD criteria
  • Patients whose age and sex, as recorded in GPRD is the same as that recorded in HES and MINAP.
  • Patients with evidence of myocardial infarction in one of the datasets (HES, MINAP, GPRD, ONS) between 1st January 2003 and 6th August 2009.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

London School of Hygiene and Tropical Medicine

London, WC1E 7HT, United Kingdom

Location

General Practice Research Database

London, United Kingdom

Location

University College, London

London, United Kingdom

Location

Related Publications (1)

  • Herrett E, Shah AD, Boggon R, Denaxas S, Smeeth L, van Staa T, Timmis A, Hemingway H. Completeness and diagnostic validity of recording acute myocardial infarction events in primary care, hospital care, disease registry, and national mortality records: cohort study. BMJ. 2013 May 20;346:f2350. doi: 10.1136/bmj.f2350.

MeSH Terms

Conditions

Myocardial Infarction

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesInfarctionIschemiaPathologic ProcessesPathological Conditions, Signs and SymptomsNecrosis

Study Design

Study Type
observational
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Degree Student

Study Record Dates

First Submitted

March 30, 2012

First Posted

April 2, 2012

Study Start

December 1, 2011

Primary Completion

December 1, 2014

Study Completion

December 1, 2014

Last Updated

October 2, 2015

Record last verified: 2015-10

Locations