Table 6

Detailed comparison of cerebrovascular disease diagnoses in HES and general practice records
HES Diagnosis (ICD-10 codes)
Transient Ischaemic Attack (G45) Stroke Other Cerebrovascular Disorders (I65-I69) All Stroke & Other Cerebrovascular Disorders (I60-I69) All Cerebrovascular Disease (G45, I60-I69)
Subarachnoid Haemorrhage (I60) Haemorrhagic Stroke (I61-I62) Ischaemic Stroke (I63) Unspecified Stroke (I64)
General Practitioner Report: N=155 N=78 N=69 N=190 N=119 N=162 N=618 N=766*
Same as HES diagnosis 80.0% (124) 96.1% (75) 78.3% (54) 86.3% (164) 16.0% (19) 82.7% (134) 72.2% (446) 73.8% (565)*
Closely related diagnosis** 14.2% (22)a 0 18.9% (13)b 10.5% (20)c 76.5% (91)d 6.8% (11)e 21.9% (135) 20.2% (155)*
No cerebrovascular diagnosis 5.8% (9) 3.9% (3) 2.9% (2) 3.2% (6) 7.6% (9) 10.5% (17) 6.0% (37) 6.0% (46)

HES: hospital episode statistics; ICD-10: International Classification of Diseases 10th Revision.

* Rows do not total as 7 women with both G45 and I60-I69 ICD-10 codes in selected HES record are included in both applicable columns.

** Includes general practitioner report of:

a Ischaemic stroke (n=18) & unspecified stroke (n=4).

b Subarachnoid haemorrhage (n=3), ischaemic stroke (n=6) & unspecified stroke (n=4).

c Transient ischaemic attack (n=4), haemorrhagic stroke (n=5) & unspecified stroke (n=11).

d Transient ischaemic attack (n=3), ischaemic stroke (n=78) & haemorrhagic stroke (n=10).

e Transient ischaemic attack (n=11).

Wright et al.

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

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