Table 1 Sample characteristics: the WOLF Stockholm study
Risk factor at baselineMen, nMean (SD) or %
Age, years312241.6 (11.1)
Educational attainment
Social class
    Professional and higher manager63223.3
    Technical, lower management72726.8
    Skilled manual49618.3
    Unskilled manual62322.9
Supervisory status
Mean income per year, 10003104253.11 (137.98)
Swedish kronor
Perceived physical load at work (proxy quartiles)
Physical exercise
    Never or very little78524.9
    Now and then115336.5
Smoking status
    Never smoker141746.4
Body mass index, kg/m2311925.2 (3.3)
Systolic blood pressure, mm Hg3118123 (14)
Diastolic blood pressure, mm Hg311875 (10)
Total cholesterol, mmol/l31225.48 (1.15)
Total:HDL cholesterol ratio31214.29 (1.45)
Triglycerides, mmol/l31221.40 (1.02)
Fibrinogen, mmol/l31212.69 (0.73)
  • HDL, high density lipoprotein.