Table 1

General practitioner report categories for vascular disease* diagnoses in HES records
General practitioner report for selected HES vascular disease* diagnosis: Inclusion criteria: Interpretation:
· General practice record of the same diagnosis as the 3 digit ICD-10 diagnosis code in the HES admission. · Evidence of the specific diagnosis (confirmed or suspected) at the time of or prior to the HES admission was found in general practice records. · General practice records agree with the HES record.
· General practice record of a closely related** diagnosis to the 3 digit ICD-10 diagnosis code in the HES admission. · Evidence of a closely related** diagnosis (confirmed or suspected) at the time of or prior to the HES admission was found in general practice records. · General practice records broadly agree with the HES record.
· No general practice record of the same or closely related diagnosis as in the HES admission. · No evidence of any diagnosis within the same broad diagnosis group, at the time of or prior to the specified admission, was found in general practice records; other or no reason apparent for this admission. · General practice records do not agree with the HES record.

Notes: HES: Hospital Episode Statistics; ICD-10: International Classification of Diseases (10th Revision).

* Ischaemic heart disease: myocardial infarction (ICD-10 codes I21-I22) & other ischaemic heart disease (I20, I23-I25); cerebrovascular disease: transient ischaemic attack (G45) & stroke & other cerebrovascular disorders (I60-I69); and venous thromboembolism: pulmonary embolism (I26) & venous thrombosis (I80-I82.

** within the same broad diagnostic group (e.g. for ischaemic heart disease, a general practice record of myocardial infarction for a HES record of other ischaemic heart disease or vice versa; for cerebrovascular disease, a general practice record of stroke or other cerebrovascular disorders for a HES record of transient ischaemic attack or vice versa; for venous thromboembolism, a general practice record of pulmonary embolism for a HES record of venous thrombosis or vice versa).

Wright et al.

Wright et al. BMC Medical Research Methodology 2012 12:161   doi:10.1186/1471-2288-12-161

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