Table 1.

Characteristics of study sample by BMI at baseline

BMI (kg/m2) at baseline
18.50-22.9923.00-24.9925.00-27.4927.50-29.99≥30.00
Men (n = 38,822)
No. participants9,40810,82010,9425,1302,522
Years of follow-up, mean (SD)23.3 (6.3)23.3 (6.3)22.8 (6.3)22.1 (6.5)21.0 (6.8)
Baseline screening (%)
    Screening I40.640.439.037.033.0
    Screening II31.230.028.628.028.0
    Screening III28.229.632.535.039.0
Age (y), mean (SD)*39.3 (8.4)40.9 (7.4)42.2 (6.8)43.0 (6.4)43.7 (6.6)
Weight (kg), mean (SD)*68.0 (6.0)74.8 (5.8)81.0 (6.4)88.3 (7.1)98.7 (10.1)
Height (cm), mean (SD)177.1 (6.7)176.3 (6.6)175.9 (6.5)175.7 (6.7)175.2 (6.9)
Energy intake (kJ/d), mean (SD)*8,889 (2,232)8,573 (2,277)8,210 (2,319)7,847 (2,285)7,488 (2,242)
Physical activity level (%)*
    Sedentary22.421.723.526.432.5
    Moderately active45.046.345.142.639.7
    Active32.631.931.531.127.8
Smoking status (%)*
    Never smoker25.827.926.524.522.8
    Former smoker16.924.529.733.233.2
    Current smoker57.347.643.942.344.0
Education (%)
    Primary schooling34.234.639.145.148.4
    Secondary education48.149.548.245.344.1
    Higher education17.815.912.69.67.5
Women (n = 37,357)
No. participants15,3888,6636,4523,3923,462
Years of follow-up, mean (SD)23.6 (6.0)23.8 (6.1)23.5 (6.2)23.4 (6.3)22.9 (6.3)
Baseline screening (%)
    Screening I38.841.940.939.938.6
    Screening II29.028.027.828.928.8
    Screening III32.230.131.331.232.6
Age (y), mean (SD)*39.2 (7.7)41.6 (7.0)42.7 (6.7)43.8 (6.6)44.4 (6.6)
Weight (kg), mean (SD)*57.4 (5.0)64.1 (4.8)69.4 (5.5)75.3 (5.9)87.3 (11.0)
Height (cm), mean (SD)164.1 (5.9)163.5 (5.9)162.9 (6.1)162.1 (6.1)161.3 (6.4)
Energy intake (kJ/d), mean (SD)*5,828 (1,641)5,543 (1,558)5,404 (1,531)5,301 (1,526)5,267 (1,534)
Physical activity level (%)*
    Sedentary27.424.724.824.428.3
    Moderately active66.367.666.066.362.9
    Active6.47.89.29.28.8
Smoking status (%)*
    Never smoker41.645.950.153.555.3
    Former smoker15.017.517.316.616.6
    Current smoker43.336.632.630.028.1
Education (%)
    Primary schooling33.739.444.550.256.7
    Secondary education49.948.345.442.137.1
    Higher education16.512.210.17.76.2
  • *At baseline.