Table 5.
Cardiovascular risk factors in subjects with normal ECG and in subjects with ukMI. Mean (SD) or proportions (%). Test for differences between groups with χ2 or t-test.
| A. Men | |||
| Normal ECG | ukMI | p | |
| ECG classification (n) | 364 (94.8 %) | 20 (5.2 %) | |
| Age (years) | 44,4 (11.1) | 52.2 (11) | 0.002 |
| Previous disorders | |||
| Hypertension | 65 (17.9 %) | 8 (40 %) | 0.02 |
| Hypercholesterolemia | 122 (33.5 %) | 12 (60 %) | 0.02 |
| Diabetes | 9 (2.5 %) | 3 (15 %) | 0.002 |
| Tobacco use | |||
| Current smoker | 75 (20.8 %) | 1 (5 %) | 0.17 |
| Current snuff user | 71 (20.7 %) | 3 (15.8 %) | 0.61 |
| Anthropometric variables | |||
| Height (cm) | 176.9 (6.8) | 176.3 (6.1) | 0.68 |
| Weight (kg) | 78.9 (10.9) | 81.5 (11.9) | 0.30 |
| BMI (kg/ m2) | 25.2 (3.2) | 26.2 (3.3) | 0.19 |
| Hip circumference (cm) | 99 (5.7) | 100.8 (5.1) | 0.18 |
| Waist circumference (cm) | 92.2 (9.1) | 95.3 (7.8) | 0.14 |
| Waist-hip ratio | 0.93 (0.1) | 0.95 (0.1) | 0,19 |
| Biochemical markers (mmol/l) | |||
| Total cholesterol | 6.1 (1.3) | 6.6 (0.8) | 0,08 |
| HDL | 1.1 (0.3) | 1.2 (0.2) | 0,77 |
| Triglycerides (n = 231) | 1.4 (1.1) | 1.9 (1.3) | 0,12 |
| Fasting plasma glucose | 5.2 (1.6) | 5.7 (2.5) | 0.22 |
| 2 hour postload plasma glucose | 5.3 (2.2) | 5.1 (1.5) | 0,71 |
| Glucose tolerance (n = 304) | |||
| Impaired glucose tolerance | 17 (5.9 %) | 1 (7.1 %) | 0,83 |
| Diabetes | 7 (2.4 %) | 0 | |
| B. Women | |||
| Normal ECG | ukMI | p | |
| ECG classification (n) | 349 (95.4 %) | 17 (4.6 %) | |
| Age (years) | 44 (11) | 53.8 (7.1) | <0.001 |
| Previous disorders | |||
| Hypertension | 54 (15.5 %) | 8 (47.1 %) | 0.003 |
| Hypercholesterolemia | 123 (35.2 %) | 8 (47.1 %) | 0.32 |
| Diabetes | 3 (0.9 %) | 0 (0 %) | |
| Tobacco use | |||
| Current smoker | 92 (26.6 %) | 3 (17.6 %) | 0.41 |
| Current snuff user | 4 (1.2 %) | 0 | |
| Anthropometric variables | |||
| Height (cm) | 163.7 (6) | 162.1 (5.0) | 0.30 |
| Weight (kg) | 65.6 (11.8) | 75.4 (15.9) | 0.001 |
| BMI (kg/m2) | 24.4 (4.1) | 28.7 (6.5) | <0.001 |
| Hip circumference (cm) | 98.6 (8.3) | 106.6 (12) | <0.001 |
| Waist circumference (cm) | 82.6 (11.3) | 92 (18.7) | 0.001 |
| Waist-hip ratio | 0.84 (0.1) | 0.86 (0.1) | 0.2 |
| Biochemical markers (mmol/l) | |||
| Total cholesterol | 6.1 (1.3) | 6.6 (1.4) | 0.17 |
| HDL | 1.4 (0.4) | 1.2 (0.3) | 0.16 |
| Triglycerides (n = 240) | 1 (0.6) | 1.4 (1) | 0.04 |
| Fasting plasma glucose | 4.8 (0.7) | 5 (0.4) | 0.26 |
| 2 hour postload plasma glucose | 5.7 (1.9) | 6.9 (2.2) | 0.02 |
| Glucose tolerance (n = 293) | |||
| Impaired glucose tolerance | 28 (10.1 %) | 5 (38.5 %) | 0.006 |
| Diabetes | 7 (2 %) | 0 | |
ECG = electrocardiogram. HDL = high-density lipoprotein. ukMI = unknown myocardial infarction. BMI = body mass index