Table 2. Baseline characteristics.
| Characteristic | Median (Interquartile Range) or Percentage | p-Value for Differencea | |
| Complete Study Cohort (n = 6,844) | Subgroup with Data on Additional Risk Factors (n = 3,570) | ||
| Age, y | 68.2 (62.0–75.6) | 67.7 (62.1–74.0) | <0.001 |
| Female sex | 60.1% | 60.6% | <0.001 |
| Systolic blood pressure, mm Hg | 138 (123–153) | 137 (123–152) | 0.52 |
| Diastolic blood pressure, mm Hg | 73 (66–81) | 73 (66–81) | 0.68 |
| Antihypertensive medication | 12.8% | 12.3% | 0.56 |
| Current smoking | 22.2% | 24.1% | <0.001 |
| Former smoking | 40.8% | 42.3% | <0.001 |
| Diabetes mellitus | 10.3% | 9.2% | 0.15 |
| Atrial fibrillation | 5.0% | 3.9% | 0.04 |
| Angina pectoris | 3.6% | 2.6% | 0.42 |
| PTCA/CABG | 2.7% | 1.3% | 0.64 |
| Symptomatic myocardial infarction | 6.1% | 6.7% | 0.002 |
| TC, mmol/l | 6.6 (5.8–7.4) | 6.6 (5.9–7.4) | 0.01 |
| HDL cholesterol, mmol/l | 1.3 (1.1–1.6) | 1.3 (1.1–1.6) | 0.39 |
| BMI, kg/m2 | 26.0 (23.8–28.4) | 26.0 (23.9–28.4) | 0.24 |
| Serum C-reactive protein, mg/l | — | 1.74 (0.87–3.35) | — |
| Alcohol intake, servings | — | 0.29 (0.01–1.40) | — |
| Fruit and vegetable intake, servings | — | 6.6 (5.1–8.2) | — |
| Carotid IMT, mm | — | 0.77 (0.68–0.86) | — |
a
Difference between participants included and not included in the subgroup with data on additional risk factors. Logistic regression model adjusted for all other characteristics.