Table 1.
Number of records for 110 patients without a history of cardiovascular disease in which data on risk factors needed were available*
| Risk factor | Availability of data in patient's record* | Data requirements for risk calculation tools
|
|||
|---|---|---|---|---|---|
| Sheffield table | New Zealand table | European table | British program | ||
| Age | 110 (100) | Yes | Yes | Yes | Yes |
| Sex | 110 (100) | Yes | Yes | Yes | Yes |
| Blood pressure | 109 (99) | Indirect | Yes | Yes | Yes |
| Cholesterol: | 80 (73) | Yes (if high enough risk) | Yes | Yes | Yes |
| HDL cholesterol | 23 (21) | No | Yes | No | Yes |
| Smoking status | 105 (95) | Yes | Yes | Yes | Yes |
| Diabetic status | 110 (100) | Yes | Yes | Indirect | Yes |
| Left ventricular hypertrophy | 110 (100) | Yes | No (classifies as high risk) | No | Yes |
*
70 additional patients had a history of cardiovascular disease and should, by definition, be classified as high risk of coronary heart disease. Numbers of patients whose risk could be classified (n=180) were 161 with the Sheffield table, 92 with the New Zealand table, 150 with the European table and 92 with the British program.