Table 1

Mean (SD) values of risk characteristics at study entry

Minnesota
Code
At study entrynWomen (n=6639) (%)Age (years)Body mass index (kg/m2)Systolic blood pressure (mm Hg)Diastolic blood pressure (mm Hg)Use of antihypertensive medication (%)Ex-smoker or current smoker (%)Alcohol intake (g/day)Serum total cholesterol (mg/dL)Diabetes
mellitus (%)
Code4No962058.152.4 (8.7)23.3 (3.2)133.5 (19.5)80.4 (11.6)11.838.916.2 (23.5)189.5 (35.1)4.0
Minor108675.855.2 (8.3)23.5 (3.2)144.1 (22.5)83.7 (12.6)23.325.111.5 (22.0)194.8 (37.4)4.8
Major35065.457.5 (8.0)23.9 (3.4)155.6 (25.9)87.5 (13.9)37.135.414.7 (22.5)196.2 (36.1)8.4
P for difference<0.001<0.001<0.001<0.001<0.001<0.0010.190.0690.0420.0062
Code5No973358.652.4 (8.7)23.2 (3.2)133.8 (19.7)80.4 (11.6)11.838.515.9 (23.5)189.1 (34.9)4.0
Minor101469.356.0 (8.4)24.2 (3.2)146.2 (23.0)85.4 (12.6)27.929.815.3 (23.4)198.4 (37.3)5.6
Major30974.855.9 (8.8)24.3 (3.5)145.6 (25.5)84.2 (14.4)28.328.012.0 (20.9)200.2 (39.1)8.2
 P for difference <0.001<0.001<0.001<0.001<0.001<0.0010.370.018<0.0010.0021
  • Values are the mean±SD or percentages, adjusted for age and gender.

  • Minnesota Code: Code4 minor; 4-3 to modified 4-5: Code4 major; 4-1 to 4-2: Code5 minor; 5-3 to modified 5-5: Code5 major; 5-1 to 5-2.