Clinical and angiographic characteristics of the patients
| Total group | L-A group | D-A group | |
| Age (years) (mean (SD)) | 59 (7) | 58 (7) | 61 (6) |
| Sex | |||
| Male | 18 | 11 | 7 |
| Female | 6 | 4 | 2 |
| Previous myocardial infarct (> 6 months) | 7 | 5 | 2 |
| Risk factors | |||
| Hypertension | 8 | 5 | 3 |
| Hyperlipidaemia | 15 | 9 | 6 |
| Smoking | 12 | 8 | 4 |
| Diabetes | 0 | 0 | 0 |
| Family history | 14 | 9 | 5 |
| Mean plasma cholesterol (mmol/l) (mean (SEM)) | 6.53 (0.31) | 6.42 (0.44) | 6.84 (0.26) |
| Mean plasma triglyceride (mmol/l) (mean (SEM)) | 1.85 (0.16) | 1.74 (0.19) | 2.05 (0.25) |
| Coronary artery disease | |||
| One vessel disease | 14 | 9 | 5 |
| Two vessel disease | 7 | 4 | 3 |
| Three vessel disease | 3 | 2 | 1 |
| Number of lesions | |||
| ⩾ 50% stenosis | 16 | 10 | 6 |
| < 50% stenosis | 20 | 12 | 8 |
Values are numbers of patients unless stated.
L-A, L-arginine; D-A, D-arginine.