Table 1

Subject characteristics at baseline survey

N (referents/cases)ReferentsCasesP value
Women, %671/33648 (44–52)48 (43–53)Matched
Age at survey, year671/33656.7 (56.0–57.3)56.7 (55.8–57.6)Matched
Age at surgery, year–/33667.2 (66.3–68.2)
BMI, kg/m2655/32226.1 (25.8–26.4)26.9 (26.4–27.4)0.01
Hypertension, %545/26949.2 (45.0–53.4)61.0 (55.1–66.8)0.001
Systolic blood pressure, mm Hg545/270136 (134–137)138 (136–141)0.04
Diastolic blood pressure, mm Hg545/26985 (84–85)86 (85–87)0.05
Glucose intolerance, %490/24219.8 (16.3–23.3)26.4 (20.8–32.0)0.05
Smoker, %531/25853.7 (49.4–57.9)59.7 (53.7–65.7)0.11
Total cholesterol, mmol/L535/2656.2 (6.1–6.3)6.4 (6.2–6.5)0.05
Apolipopotein B, g/L*647/3101.09 (1.07–1.11)1.13 (1.10–1.16)0.05
Apolipoprotein A1, g/L*647/3091.41 (1.40–1.43)1.40 (1.37–1.42)0.25
Apolipoprotein B/A1, ratio*647/3090.77 (0.76–0.79)0.81 (0.79–0.84)0.01
hs-CRP, mg/L*
 All646/3101.2 (1.1–1.3)1.3 (1.2–1.5)0.07
 Men334/1551.0 (0.9–1.0)1.2 (1.0–1.3)0.06
 Women312/1551.2 (1.1–1.4)1.6 (1.4–1.8)0.006
 Surgery <5 years after survey146/691.2 (1.0–1.3)1.4 (1.2–1.7)0.08
 Surgery ≥5 years after survey500/2411.1 (1.0–1.2)1.3 (1.2–1.44)0.006
 No CAD256/1281.1 (1.0–1.2)1.2 (1.0–1.4)0.33
 CAD388/1811.1 (1.0–1.3)1.4 (1.3–1.6)0.005
hs-TnT, ng/L*
 All647/3104.4 (4.2–4.5)4.8 (4.5–5.1)0.01
 Men335/1554.6 (4.4–4.8)5.2 (5.0–5.6)<0.001
 Women312/1553.8 (3.7–3.9)4.0 (3.8–4.3)0.09
 Surgery <5 years after survey146/694.7 (4.4–5.1)6.4 (5.7–7.3)<0.001
 Surgery ≥5 years after survey501/2414.1 (4.0–4.2)4.3 (4.1–4.5)0.08
 No CAD256/1283.9 (3.8–4.1)4.5 (4.2–4.8)<0.001
 CAD389/1814.6 (4.4–4.8)5.0 (4.7–5.3)0.04
  • Glucose intolerance, impaired fasting glucose or impaired glucose intolerance or diabetes mellitus; hypertension, systolic blood pressure ≥140 and/or diastolic blood pressure ≥90 and/or antihypertensive treatment; smoker, present or previous smoker.

  • Values shown are numbers, means (*geometric) and proportions with 95% CIs; p values were based on the Student’s t-test.

  • BMI, body mass index; CAD, coronary artery disease; hs-CRP, high-sensitivity C reactive protein; hs-TnT, high-sensitivity troponin T.