| HES Diagnosis (ICD-10 code) | |||
---|---|---|---|---|
 | Ischaemic Heart Disease (I20-I25) | Venous Thromboembolism (I26, I80-I82) | Cerebrovascular Disease (G45, I60-I69) | No Vascular Disease |
Study forms sent to general practitioners | N=1004 | N=1004 | N=1004 | N=997 |
Study forms returned | 90.4% (908) | 90.3% (907) | 90.1% (905) | 92.1% (918) |
% of returned study forms with analysable diagnostic data | 87.7% (796) | 83.9% (761) | 84.7% (766) | 94.1% (864) |