Basic data in patients with syndrome X and the control group
| Syndrome X group | Control group | p Value | |
|---|---|---|---|
| Values are mean (SD). HDL, high density lipoprotein; IHD, ischaemic heart disease; LDL, low density lipoprotein; NA, not applicable; NS, not significant. | |||
| Number of patients | 52 | 40 | NS |
| Women | 34 | 27 | NS |
| Average age (years) | 45 (3) | 41 (2) | 0.01 |
| Smokers | 3 | 0 | 0.01 |
| Positive family history for IHD | 5 | 0 | 0.01 |
| Systolic blood pressure (mm Hg) | 124.7 (7.9) | 124.8 (7.2) | NS |
| Diastolic blood pressure (mm Hg) | 77.1 (6.3) | 77.1 (6.2) | NS |
| Total cholesterol (mmol/l) | 4.72 (0.19) | 4.68 (0.22) | NS |
| LDL cholesterol (mmol/l) | 2.72 (0.32) | 2.71 (0.33) | NS |
| HDL cholesterol (mmol/l) | 1.52 (0.14) | 1.53 (0.15) | NS |
| Triglycerides (g/l) | 1.04 (0.12) | 1.01 (0.13) | NS |
| Resting heart rate (beats/min) | 75.6 (7.8) | 71.0 (9.7) | 0.01 |
| Maximum heart rate (beats/min) | 151 (10) | 164 (12) | 0.01 |
| Maximum ST depression (mm) | 2.4 (0.4) | 0.9 (0.4) | 0.01 |
| Exercise test duration (min) | 6.8 (1.8) | 9.6 (0.9) | 0.01 |
| Ischaemic pain present (number) | 29 | 0 | NA |